Members of a police SWAT team lineup outside the main Olympic Stadium, also known as the Bird's Nest, during security drill rehearsals on July 23, 2008 in Beijing. The 2008 Olympics' security chief has said that Beijing can stage a fun Olympics as well as a safe one, in response to charges that a massive security clampdown was squeezing the joy out of the Games. More than 110,000 troops and police were engaged in security and were joined by hundreds of thousands of volunteers and that millions of Beijing residents had also been roped into the operation. AFP PHOTO/Frederic J. BROWN (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)
