John Casas, 15, prepares to go for an athletics training session in Medellin September 17, 2009. Casas, who lives in the violent Comuna 13 neighborhood in Medellin, lost his legs in a car accident. The Casas family were displaced by civil war from their home in Uraba, Antioquia province. John is being helped by a rehabilitation center and dreams of participating in the Paralympics in London 2012.  REUTERS/Albeiro Lopera

A model presents a creation from the Isaac Mizrahi Spring 2010 collection during New York Fashion Week, September 17, 2009.  REUTERS/Eric Thayer

Security guards gather in front of a shopping mall where military vehicles will pass towards Tiananmen Square, ahead of a rehearsal for the 60th anniversary of the founding of the People’s Republic of China, in Beijing September 18, 2009. The Chinese government is flooding Beijing with armed police and up to one million security “volunteers” to head off any unrest over October’s sensitive anniversary of 60 years of Communist Party rule. REUTERS/Jason Lee

A Bulgarian soldier sits atop a military vehicle during a joint military training with U.S. soldiers from the 2nd Stryker Cavalry Regiment at Novo Selo military base near the town of Sliven, some 350 km (217 miles) east of Sofia, September 17, 2009.   REUTERS/Stoyan Nenov

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