In this February 7, 2014 file photo, Matt Figi hugs and tickles his once severely-ill seven year old daughter Charlotte, as they walk together inside a greenhouse for a special strain of medical marijuana known as Charlotte's Web, which was named after the girl early in her treatment for crippling severe epilepsy, in the mountains west of Colorado Springs, Colo. Colorado is poised to award more than $8 million for medical marijuana research, a step toward addressing complaints that little is known about pot's medical potential. Among the research projects poised for approval on Wednesday, December 17, 2014, are one for pediatric epilepsy patients, and another for children with brain tumors. (Photo by Brennan Linsley/AP Photo)

A girl of the Amazonian Tatuyo tribe poses while waiting to sell crafts to tourists in her village in the Rio Negro (Black River) near Manaus city, a World Cup host city, June 23, 2014. Because of their proximity to host city Manaus and their warm welcome, the Tatuyo have enjoyed three weeks of brisk business thanks to the World Cup. Usually, they host between 10 and 30 tourists a day. During the World Cup, this number has rocketed to 250 a day, They have become richer and other communities now come to them to sell them juices and fishes. (Photo by Andres Stapff/Reuters)

Serbian police officers of the Special Anti-Terrorist Unit pose for a picture in their base outside Belgrade October 8, 2014. When the killing of an unarmed black teenager by a white policeman in Ferguson, Missouri, in August sparked sometimes violent protests, the response of police in camouflage gear and armoured vehicles wielding stun grenades and assault rifles seemed more like a combat operation than a public order measure. Some U.S. police departments have recently acquired U.S. military-surplus hardware from wars abroad, but there are many law enforcers around the world whose rules of engagement also allow the use of lethal force with relatively few restrictions. But for every regulation that gives police wide scope to use firearms, there is another code that sharply limits their use. In Serbia, police may use measures ranging from batons to special vehicles, water cannon and tear gas on groups of people who have gathered illegally and are behaving in a way that is violent or could cause violence, but they may use firearms only when life is endangered. (Photo by Marko Djurica/Reuters)

Michael Grant, 28, “Philly Jesus”, carries a 12 foot cross 8 miles through this blighted area of North Philadelphia towards LOVE Park in Center City as part of a Christmas walk to spread the true message of the holiday in Philadelphia, Pennsylvania December 20, 2014. As many as a half dozen others joined him for numerous miles as he trekked southward down Broad Street. Some shouted “Praise Jesus!” and “Thank you for doing this!” at the sight. Nearly everyday for the last 8 months, Grant has dressed as Jesus Christ, and walked the streets of Philadelphia to share the Christian gospel by example. He quickly acquired the nickname of “Philly Jesus”, which he has gone by ever since. (Photo by Mark Makela/Reuters)

Factory landlord Lawrence Taylor (L), portraying a Colour Sergeant from the King's Royal Rifle Corps, part of the Rifles Living History Society, performs a drill with Connor Young (R) of the Queen's Own Royal West Kent Regiment Living History Group as they recreate the life of a First World War soldier at the Eden Valley Museum in Edenbridge in southeast England May 10, 2014. Lawrence has always had an interest in military history and specifically “The Rifles” – his veteran father's WWII regiment. When he became a re-enactor he chose not to re-enact WWII as many of the veterans are still alive, and he felt uncomfortable as he remembers his father would have flashbacks and nightmares about the war. United by a fascination with military history and a fondness for dressing up, groups such as the Rifles Living History Society and the Queen's Own Royal West Kent Regiment Living History Group get together to recreate aspects of life during the First World War. Reuters photographer Luke MacGregor photographed members of the groups, both as they took part in living history events and at their day jobs. (Photo by Luke MacGregor/Reuters)

A recent undated handout picture released by the Guinness World Records on September 9, 2014, shows 49-year-old trick golf artist Karsten Maas, from Denmark, who secured his place in the 2015 Guinness World Records book for creating the world’s longest usable golf club. It measures 4.37, (14ft 5in) in length and has been used to drive a ball a distance of 165.46m (542ft 10.16in). The 60th anniversary edition of the Guinness World Records book will reflect on six decades of record-breaking, whilst also featuring the latest additions to the oddball hall of fame. (Photo by Ranald Mackechnie/AFP Photo/Guinness World Records)

Google's vice president Alan Eustace looks out of his spacesuit into the stratosphere prior to a record-breaking skydive over New Mexico, in this still image taken from video October 24, 2014, a handout courtesy of the Paragon Space Development Corporation. Eustace was lifted up 135,890 ft (41,420 metres) by an enormous balloon while wearing a specially designed pressurized space suit, the Paragon Space Development Corporation said. Eustace remained in a free fall for approximately 4.5 minutes before landing safely nearly 70 miles (43.4 kms) from his launch point, setting a world record for the highest skydive and breaking the sound barrier in the process. Eustace landed safely on the ground just 15 minutes after he was lifted into the air. (Photo by Reuters/Paragon Space Development Corporation)

A man walks in the early morning to start his day picking tea leaves at a plantation in Nandi Hills, in Kenya's highlands region west of capital Nairobi, November 5, 2014. Emerald-coloured tea bushes blanketing the rolling hills of Nandi County have long provided a livelihood for small-scale farmers, helping make Kenya one of the world's biggest tea exporters. But ideal weather and bigger harvests, instead of producing bumper earnings, have led to a glut of Kenya's speciality black tea. (Photo by Noor Khamis/Reuters)