Weakened by sickness and malnutrition, Arbty Mohammad, 2, lies in the Banadir Hospital on August 12, 2011 in Mogadishu, Somalia. Some 100,000 Somalis have flooded into Mogadishu from drought and famine stricken areas of the country. The UN warned Friday that a cholera epidemic could spread through Mogadishu, as Somalis fill unsanitary makeshift camps throughout the capital. (Photo by John Moore/Getty Images)

“Daredevil Nik Wallenda became the first person to walk on a tightrope across the Niagara Falls, taking steady, measured steps June 15, 2012 for 1,800 feet across the mist-fogged brink of the roaring falls separating the U.S. and Canada”. (Photo by John Moore/David Duprey/AP Photo)

A model showcases designs by Isola by Megan Gale on the catwalk at the David Jones Spring/Summer 2011 season launch at the Royal Hall of Industries, Moore Park on August 3, 2011 in Sydney, Australia. (Photo by Lisa Maree Williams/Getty Images)

Riot police face off with demonstrators at the “Occupy Denver” camp on October 29, 2011 in Denver, Colorado. Following a march by protesters, police moved in on their encampment to tear down recently erected tents. They arrested numerous protesters, pepper-sprayed others and others reportedly fired rubber bullets at the crowd during the confrontation. (Photo by John Moore/Getty Images)

Teams face off in the Cartier Elephant Polo Cup November 18, 2006 in Jaipur, in the Indin state of Rajasthan. Cartier hosted the event which was held to highlight the plight of the dwindling numbers of Asian elephants. Indian and international celebrities flew in the India's “Pink City” for the high society event held by the global watch and jewelry giant. The animal rights organization, People for the Ethical Treatment of Animals, “PETA” had planned to protest the match, saying that elephants should not be used for sport. Elephants in Jaipur are commonly used for carrying tourists at historic sites. (Photo by John Moore/Getty Images)

Afghan children wait as their mothers receive treatment at a USAID-funded health center on September 7, 2011 in Farza, Afghanistan. Almost 10 years after the 9/11 attacks and the U.S. invasion of Afghanistan, the U.S. government funds some of 500 Afghan health facilities nationwide, most run by non-governmental organizations contracted by the Afghan Ministry of Public Health. (Photo by John Moore/Getty Images)

An Afghan child practices walking with his new prosthesis at the International Committee of the Red Cross (ICRC), orthopedic center on September 10, 2011 in Kabul, Afghanistan. After more than 30 years of war and a decade since the 9/11 attacks in the United States, thousands of Afghans, both military and civilian, continue to pay a heavy price from the conflict. The ICRC center makes prosthetics for amputees and helps them, as well as Afghans with spinal injuries and children with congenital birth defects, to learn to walk. (Photo by John Moore/Getty Images)

Claire and Rupert Callender of the Green Funeral Company pose for a photograph with a environmentally friendly coffin in woodland close to their office at Dartington Hall Estate on February 4, 2011 near Torquay, England. The Devon-based company operates as funeral directors and undertakers throughout the South West, offers an ecological alternative to traditional funerals, with coffins made from ecologically friendly materials such as wicker and bamboo, and can arrange funerals that encompass diverse religious and spiritual beliefs everything from a Catholic Requiem Mass, to a Pagan ritual at a stone circle on Bodmin Moor. (Photo by Matt Cardy/Getty Images)