President Bush's agenda in Asia this week is front-loaded with trouble on the continent: nuclear worries, political repression, recovery from natural disaster. An Olympics volunteer takes photos of the Olympic Green housing the National Aquatics Center also known as the "Water Cube" at dusk on Sunday Aug.3, 2008 in Beijing. The NAC will host the swimming and diving events in the Beijing 2008 Olympics which opens Aug.8. The National Stadium known as the "Bird's Nest" is reflected on the man-made lake at the Olympic Green Park at dusk on Sunday Aug.3, 2008 at in Beijing. The National Stadium is the venue for the opening and closing ceremonies and the Athletics events in the Beijing 2008 Olympics which opens Aug.8. ...