Israeli soldiers play the parts of wounded civilians during a drill simulating a toxic spill from an attack on a train in Beersheba, southern Israel, 13 January 2016, as Home Front medical teams, fire fighters and police carry out rescue operations. The large scale drill is the concluding exercise of the Fourth International Conference on Healthcare System Preparedness and Response to Emergencies and Disasters and includes some 200 of the world's experts on health system readiness from around the world. The conference is dealing with all types of medical emergencies from terrorist attacks to natural disasters. (Photo by Jim Hollander/EPA)

Palestinian children warm themselves by a fire on a stormy day at Shati (beach) refugee camp in Gaza City January 18, 2016. (Photo by Mohammed Salem/Reuters)

People stroll alongside one of the hills of the Tio Pio park in Madrid, Monday, January 25, 2016. The park is a high viewpoint frequented mostly by locals due to its view of the Spanish capital skyline. (Photo by Francisco Seco/AP Photo)

Expedition 44 flight engineer and NASA astronaut Scott Kelly seen inside the Cupola, a special module which provides a 360-degree viewing of the Earth and the International Space Station. Kelly is one of two crew members spending an entire year in space. (Photo by Scott Kelly/NASA)

In this Wednesday, November 11, 2015 photo, one of the giant mechanical sharks that starred in the movie “Jaws” is seen at Aadlen Brothers Auto Wrecking, also known as U Pick Parts, in the Sun Valley section of Los Angeles. It's not just a junkyard or even a really big junkyard, but a living, breathing monument to Los Angeles pop culture. But the family business is closing on New Year's Eve, and everything must go by then, the cars, the shark, the arches, even the giant car-crushing machine. (Photo by Jae C. Hong/AP Photo)

A man drives a car loaded with electronic and household appliances the Dbayeh highway, at the northern entrance of Lebanon's capital Beirut, on August 11, 2020, following a huge chemical explosion that devastated large parts of the city. (Photo by Joseph Eid/AFP Photo)

A Nepalese devotee offers ritual prayer at the Bank of Bagmati River of Pashupatinath Temple during Rishi Panchami Festival celebrations at Kathmandu, Nepal on Sunday, August 23, 2020. Rishi Panchami festival is celebrated as the last day of three-day long Teej Festival. The Teej festival is celebrated by Hindu women in Nepal as well as in some parts of India. (Photo by Narayan Maharjan/NurPhoto via Getty Images)

A staff member of a toy store wears a face mask as she invites customers to enter the store, in London, Tuesday, September 22, 2020. British Prime Minister Boris Johnson has slammed the brakes on the country's return to offices, saying people should work from home if possible to help slow the spread of the coronavirus. Johnson on Tuesday announced a package of new restrictions, including a requirement for pubs, restaurants and other hospitality venues in England to close between 10 p.m. and 5 a.m. (Photo by Frank Augstein/AP Photo)