In this Friday, February 12, 2016, file photo, nurse Brittany Boebert, left, is assisted by nurse Bethany Mulone, a bariatric educator, in trying on a bariatric patient simulation suit used for training at the dedicated Bariatric Surgery Unit on the Saint Raphael campus of Yale-New Haven Hospital in New Haven, Conn. Bariatric surgery is becoming more common, driven by growing epidemics of obesity and diabetes, improved techniques and wider insurance coverage. Still, finances and fear deter many patients who are morbidly obese, meaning excess weight and related health problems likely will kill them prematurely. (Peter Hvizdak/New Haven Register via AP Photo)





A street vendor stands near a toy tied to a small parachute as it floats along a street in Mexico City March 16, 2016. (Photo by Edgard Garrido/Reuters)





Traditional Irish dancers perform during the official listing ceremony for Irish health software maker Oneview at the Australian Securities Exchange in Sydney, Australia, March 17, 2016. The Dublin-based Oneview Healthcare produces software for hospitals, including products that can help integrate IT systems across devices like bedside terminals, televisions, tablets and smartphones. The business already sells into markets including Australia and Dubai, and has its sights on the vast US healthcare sector. (Photo by David Gray/Reuters)





A demonstrator runs to escape from a police officer during a protest at the appointment of Brazil's former president Luiz Inacio Lula da Silva as a minister, in front of the national congress in Brasilia, Brazil, March 16, 2016. (Photo by Adriano Machado/Reuters)





Police officers control demonstrators as they attend a protest over the appointment of former Brazilian president Luiz Inacio Lula da Silva as chief of staff, near the Planalto palace in Brasilia, Brazil, March 17, 2016. (Photo by Ricardo Moraes/Reuters)





An anti-government demonstrator (L) and a supporter of Brazil's President Dilma Rousseff clash before the appointment of former Brazilian president Luiz Inacio Lula da Silva as chief of staff, near the Planalto palace in Brasilia, Brazil, March 17, 2016. (Photo by Ricardo Moraes/Reuters)





Christians volunteers, who have joined the Kurdish Peshmerga fighters, take part in a training session by coalition forces in a training camp in Duhok province, Iraq March 16, 2016. (Photo by Ari Jalal/Reuters)





A military officer from the coalition forces speaks to Christian volunteers, who have joined the Kurdish Peshmerga fighters, during a training session in a training camp in Duhok province, Iraq March 16, 2016. (Photo by Ari Jalal/Reuters)





Lufthansa CFO Simone Menne (L) stands with personnel before a news conference at Lufthansa headquarters in Frankfurt, Germany, March 17, 2016. German airline group Lufthansa forecast only slightly higher profits in 2016, despite lower fuel prices, warning of cut-price competition and falling average fares as it ramps up its Eurowings budget business. Like rivals Air France-KLM and British Airways owner IAG, Lufthansa benefited from low oil prices and strong travel demand in 2015, enabling it on Thursday to restore dividend payments to shareholders. (Photo by Kai Pfaffenbach/Reuters)





Student demonstrators use a slingshot to throw rocks at police during a protest against Venezuelan President Nicolas Maduro's government in San Cristobal, Venezuela, March 10, 2016. (Photo by Carlos Eduardo Ramirez/Reuters)





Student demonstrators run away from police during a protest against Venezuelan President Nicolas Maduro's government in San Cristobal, Venezuela, March 10, 2016. (Photo by Carlos Eduardo Ramirez/Reuters)





High school students carry a banner from the Lycee Mozart as French high school and university students take part in a demonstration against the labour reform bill proposal in Paris, France, March 17, 2016 as part of a nationwide labor reform protest. (Photo by Benoit Tessier/Reuters)





Turkish soldiers stand at a park in Baglar district, which is partially under curfew, in the Kurdish-dominated southeastern city of Diyarbakir, Turkey March 17, 2016. (Photo by Sertac Kayar/Reuters)





A Syrian refugee girl sits at a playground at the Oncupinar refugee camp for Syrian refugees next to the border crossing with Syria, near the town of Kilis in southeastern Turkey, Thursday, March 17, 2016. The European Union and Turkey hope to reach a comprehensive deal this week to tackle illegal migration and the refugee crisis spurred by conflicts in Syria and beyond. In return for its efforts, Turkey stands to gain $3.3 billion in EU funding to help it improve the situation of the 2.7 million Syrian refugees already within its borders. (Photo by Lefteris Pitarakis/AP Photo)





Visitors are greeted by an Orca killer whale as they attend a show featuring the whales during a visit to the animal theme park SeaWorld in San Diego, California March 19, 2014. Bowing to years of pressure from animal rights activists, U.S theme park operator SeaWorld said on Thursday it would stop breeding killer whales and that those currently at its parks would be the last. (Photo by Mike Blake/Reuters)





Caoimhe Cooburn-Gray poses for a picture on St. Patrick's day in Dublin, Ireland March 17, 2016. (Photo by Clodagh Kilcoyne/Reuters)





People enjoy the St. Patrick's day parade in Dublin, Ireland March 17, 2016. (Photo by Clodagh Kilcoyne/Reuters)





Parade goers pose on 5th Avenue during the 255th New York City St Patrick's Day Parade on March 17, 2016. (Photo by Timothy A. Clary/AFP Photo)





People march through the streets of Asuncion, Paraguay, March 17, 2016, during an annual protest to demand conservative Paraguayan President Horacio Cartes provide agrarian reforms, better health care and education. (Photo by Jorge Adorno/Reuters)





Jockey and former British Olympic cycling champion Victoria Pendleton hoses down Minella Theatre at Lawney Hill Racing in Aston Rowant, southern England March 17, 2016. She is due to ride Pacha Du Polder in the Foxhunter Chase at Cheltenham Festival tomorrow. (Photo by Eddie Keogh/Reuters)





South Korean actor Lee Byung-hun and Taiwanese actress Shu Qi pose with their Best Actor and Best Actress awards at the Asian Film Awards in Macau, China March 17, 2016. (Photo by Bobby Yip/Reuters)





A Ukrainian Army Antonov An-26 aircraft flies over journalists after a handing over ceremony to a Ukrainian military unit at the Antonov plant in Kiev, Ukraine, March 17, 2016. (Photo by Valentyn Ogirenko/Reuters)





Bipedal humanoid robot “Atlas”, primarily developed by the American robotics company Boston Dynamics, is presented during a news conference at the University of Hong Kong, in this file photo taken October 17, 2013. Alphabet Inc has put Boston Dynamics, part of its robotics division, up for sale for lack of revenue potential, Bloomberg reported, citing people familiar with the plans. Possible acquirers include the Toyota Research Institute, a division of Toyota Motor Corp., and Amazon.com Inc., which makes robots for its fulfillment centers, according to one person. Google and Toyota declined to comment, and Amazon didn’t respond to requests for comment. Google acquired Boston Dynamics in late 2013 as part of a spree of acquisitions in the field of robotics. The deals were spearheaded by Andy Rubin, former chief of the Android division, and brought about 300 robotics engineers into Google. Rubin left the company in October 2014. Over the following year, the robot initiative, dubbed Replicant, was plagued by leadership changes, failures to collaborate between companies and an unsuccessful effort to recruit a new leader. At the heart of Replicant’s trouble, said a person familiar with the group, was a reluctance by Boston Dynamics executives to work with Google’s other robot engineers in California and Tokyo and the unit’s failure to come up with products that could be released in the near term. (Photo by Tyrone Siu/Reuters)





The central region of the Tarantula Nebula in the Large Magellanic Cloud is seen in an undated image taken by the NASA/ESA Hubble Space Telescope released March 17, 2016. This cluster contains hundreds of young blue stars, among them the most massive star detected in the Universe so far, according to a NASA news release. Astronomers using the unique ultraviolet capabilities of the NASA/ESA Hubble Space Telescope have identified nine monster stars with masses over 100 times the mass of the Sun in the star cluster R136. R136 is only a few light-years across and is located in the Tarantula Nebula within the Large Magellanic Cloud, about 170,000 light-years away. The young cluster hosts many extremely massive, hot and luminous stars whose energy is mostly radiated in the ultraviolet. This is why the scientists probed the ultraviolet emission of the cluster. As well as finding dozens of stars exceeding 50 solar masses, this new study was able to reveal a total number of nine very massive stars in the cluster, all more than 100 times more massive as the Sun. However, the current record holder R136a1 does keep its place as the most massive star known in the universe, at over 250 solar masses. The detected stars are not only extremely massive, but also extremely bright. Together these nine stars outshine the Sun by a factor of 30 million. (Photo by P. Crowther (University of Sheffield)/Reuters/NASA/ESA)





A man checks a hunting rifle at a shop for hunting weapons in Baghdad, Iraq March 17, 2016. (Photo by Khalid al Mousily/Reuters)





Haze layers above the dwarf planet Pluto are seen in an undated image taken by the Ralph/Multispectral Visible Imaging Camera (MVIC) on NASA's New Horizons spacecraft and released March 17, 2016. About 20 haze layers are seen; the layers have been found to typically extend horizontally over hundreds of kilometers, but are not strictly parallel to the surface. For example, scientists note a haze layer about 3 miles (5 kilometers) above the surface (lower left area of the image), which descends to the surface at the right. This week, in the journal Science, New Horizons scientists have authored the first comprehensive set of papers describing results from last summer's Pluto system flyby. Above the surface, scientists discovered Pluto's atmosphere contains layered hazes, and is both cooler and more compact than expected. This affects how Pluto's upper atmosphere is lost to space, and how it interacts with the stream of charged particles from the sun known as the solar wind. (Photo by Reuters/NASA/JHUAPL/SwRI)





A woman playing the role of an injured person is attended by members of the rescue unit of the army of Nicaragua, during an earthquake drill in Managua, Nicaragua March 17, 2016. (Photo by Oswaldo Rivas/Reuters)





Supporters of Congo-Brazzaville opposition candidate Guy Parfait Kolelas attend a campaign rally ahead of Sunday's presidential election in Brazzaville, Republic of Congo, March 17, 2016. (Photo by Roch Bouka/Reuters)





A Garifuna woman smokes a cigar in front of a banner depicting an image of slain environmental rights activist Berta Caceres during a protest to demand justice in Tegucigalpa, Honduras, March 17, 2016. (Photo by Jorge Cabrera/Reuters)





Riot policemen stand with their shields stained with pain by students during a nationwide strike against the government's education, labour and health policies in Bogota, Colombia, March 17, 2016. (Photo by John Vizcaino/Reuters)





Athletes from different countries and sports pose wearing new jerseys and footwear made by Nike during an unveiling event in New York, March 17, 2016. (Photo by Eduardo Munoz/Reuters)





A man transports a sculpture of Christ covered by a colorful cloth on a trolley cart, ahead of the upcoming Holy Week, in downtown Bogota, Colombia March 17, 2016. (Photo by John Vizcaino/Reuters)





James Alex of Beach Slang performs at Sidewinder during South by Southwest in Austin, Texas, on Wednesday March 16, 2016. (Photo by Jay Janner/Austin American-Statesman via AP Photo)





Body painting artists perform a figure of a frog during “El Hormiguero” TV Show at Vertice Studio on March 17, 2016 in Madrid, Spain. (Photo by Pablo Cuadra/WireImage)





A member of the South African Police Service fires rubber bullets on striking community members in Zandspruit, an informal settlement west of Johannesburg, South Africa, 17 March 2016. Community members blocked and barricaded roads surrounding the settlement, after their illegal electricity connections where removed my Johannesburg Council workers almost a week ago. (Photo by Kevin Sutherland/EPA)





An armed Yemeni soldier paints a graffito in support of peace in the war-affected country, at a wall along a street in Sana'a, Yemen, 16 March 2016. The Saudi-led coalition performs military operations in Yemen since March 2015, targeting areas controlled by the Houthi rebels who overthrew the Saudi-backed Yemeni government. (Photo by Yahya Arhab/EPA)





Japan's last living traditional falconer, Hidetoshi Matsubara holds out a piece of meat as he calls his Bear Hawk in the mountains above Tendo city, Yamagata prefecture, Japan, 16 March 2016. Matsubara has been hunting as a professional falconer for more than forty years. Falconry reportedly was first introduced to Japan in the fourth century from Korea. Professional falconers hunting animals for meat and furs were common in Japan's northern mountains before WWII, but the lifestyle is no longer economically viable due to rapid decline in the rabbit population due to commercial forestry. Until recently, Matsubara lived with his wife and son on an annual income of one million yen, or 7,900 euro. (Photo by Everett Kennedy Brown/EPA)





Balthazar King ridden by jockey Richard Johnson falls during the Glenfarclas Chase during Ladies Day of the 2016 Cheltenham Festival at Cheltenham Racecourse, England, Wednesday March 16, 2016. (Photo by David Davies/PA Wire via AP Photo)





Defensive back Terrell Burt leaps to measure for his vertical jump for NFL scouts during the Pro Day college football workout at Baylor, Wednesday, March 16, 2016, in Waco, Texas. (Photo by L.M. Otero/AP Photo)





Bangladeshi volunteers sit at the Museum of Independence in Dhaka, Bangladesh, Thursday, March 17, 2016. The Museum of Independence is located at the place where Sheikh Mujibur Rahman, founding leader of Bangladesh, gave his historic speech declaring the struggle for independence, and where the Pakistani forces surrendered after the War of Liberation. (Photo by A.M. Ahad/AP Photo)





Afghan women wear mask of Farkhunda, an Afghan woman who was stoned to death by a mob, Kabul, Afghanistan, 17 March 2016. Farkhunda, 27, an Islamic Studies graduate, was killed by a mob outside a mosque on 19 March, after she was falsely accused of burning a Koran. She had been arguing with local mullahs about the selling of amulets for good fortune. The Appeals Court reduced the men's sentences to 20 years of jail. (Photo by Hedayatullah Amid/EPA)





The skull bone of an elephant is pictured on March 16, 2016 at the Tsavo east national park (approximately 337 kilometres south east) of capital, Nairobi, Kenya. (Photo by Tony Karumba/AFP Photo)





Trent Black sits on the roof of the home of Jamie Holden, Sr., surrounded by floodwaters from the Sabine River, Wednesday, March 16, 2016, in Deweyville, Texas. Swollen waterways have displaced thousands of people in flood-ravaged communities in Southeast Texas and floodwaters are forecast to rise even more. (Photo by Brett Coomer/Houston Chronicle via AP Photo)





A commuter looks through the closed gate at Dupont Metro Station in Washington, D.C., March 16, 2016. Metro canceled all service across the entire rail system for safety checks of electric cables for at least 24 hours on Wednesday. (Photo by Astrid Riecken/The Washington Post)





In this February 16, 2016 file photo, a girl takes pictures of her dog, back dropped by freshly sprung snowdrops and other spring flowers during an unseasonably warm winter day, in Bucharest, Romania. Earth got so hot last month that federal scientists struggled to find words, describing temperatures as “astronomical”, “staggering” and “strange”. They warned that the climate may have moved into a new and hotter neighborhood. (Photo by Vadim Ghirda/AP Photo)





A model present a creation by Japanese designer Hiroko Koshino for her label Hiroko Koshino during the Mercedes-Benz Fashion Week in Tokyo, Japan, 17 March 2016. The presentation of the Autumn/Winter 2016 collections runs from 14 to 19 March. (Photo by Kiyoshi Ota/EPA)





A semi-trailer lays on it's side near the Interstate 90/39 north onramp on the north side of Janesville, Wis., on Wednesday, March 16. High winds Wednesday led to downed trees and wires, a lack of flights in and out of Southern Wisconsin Regional Airport and at least one semi-trailer tipped over. (Photo by Anthony Wahl/The Janesville Gazette via AP Photo)





Curator Alice Sage holds up the original Bagpuss during a photocall for the Bagpuss And The Clangers Retrospective Of Smallfilms at the V&A Museum Of Childhood on March 17, 2016 in London, England. Bagpuss is a British children's television series, made by Peter Firmin and Oliver Postgate. The series of 13 episodes was first broadcast from 12 February 1974 to 7 May 1974 through their company Smallfilms. The title character was “a saggy, old cloth cat, baggy, and a bit loose at the seams”. Although only 13 episodes were made, it remains fondly remembered, and was frequently repeated in the UK for 13 years. In 1999 Bagpuss topped a BBC poll for the UK's favourite children's TV programme. (Photo by Gareth Cattermole/Getty Images)