American soldiers with the 173rd Airborne Brigade Battle Company, on a battalion-wide mission in the Korengal Valley, looking for caves, weapons caches and known Taliban leaders, 2007. Tanner Stichter tends to Spc. Carl Vandeberge in the bushes moments after Vandeberge was shot in the stomach during a Taliban ambush, which killed one soldier and wounded two others. (Photo by Lynsey Addario)

A sign marks a railway crossing next to the troubled Kruemmel nuclear power plant on June 2, 2011 in Geesthacht, Germany. The German government recently announced it will phase out the country's 17 remaining nuclear reactors by 2022 in a policy initiative that represents a radical reversal from its previous policy and was sparked by the disaster at Fukushima. Kruemmel went into operation in 1983 but was taken offline following a fire in 2007. (Photo by Sean Gallup/Getty Images)

KALTENBERG, GERMANY - JULY 08: Actors dressed as knights perform during the traditional Kaltenberg knight tournament on July 8, 2007 in Kaltenberg, Germany. With around 120,000 visitors each year, the festival including knight tournaments, medieval styled markets and a variety of music performances, the event is one of the biggest of its kind. (Photo by Johannes Simon/Getty Images)

An activist of the anti-G8 forum “Block G8” shows his middle finger to a police helicopter passing overhead June 07, 2007 at Bollhagen, near Heiligendamm, Germany. (Photo by Carsten Koall/Getty Images)

Ismail Mustafa, seen in 2007. “I was collecting mushrooms on the hill near here. I didn’t see the mine. There was a huge explosion. When I woke up I saw that both my legs were gone; I thought my life was over. My brother and another guy were with me. They made a stretcher from sticks and tied it together with clothing. It took two hours to get off the mountain. ‘My daughter has also been injured. She found a shell and brought it into the house and put it on the fire. She didn’t know what she was doing at the time – she was only three. She is blind and has lost an arm”. (Photo by Sean Sutton for the Mines Advisory Group/The Guardian)

“Freedom”. After the 30 years banning import large motorcycle, in 2007, the Taiwan government reopened the import licensing of the motorcycle displacement over 550 cubic centimeter. Those large bikes, which were never seen before, were strange thought and treated unequally frequently. However, those adversity will not stop those enthusiastic bike riders from chasing the road of freedom. Photo location: Taiwan. (Photo and caption by 火花 羅/National Geographic Photo Contest)

The contest began in 2007, and since then photographers from more than 70 countries have entered. Photo: Michael O'Neal of San Francisco won first place in the animals category in the 2014 iPhone Photography Awards. (Photo by Michael O'Neal)

An orphaned 11 month old cougar cub plays at Six Flags Discovery Kingdom on April 26, 2007 in Vallejo, California. Three cougar cubs were given to the park from the Idaho Fish & Game in March after they were found motherless in the wild and it was determined that they would not survive in the wild. (Photo by David Paul Morris/Getty Images)