Lance Armstrong, Robin Williams in Afghanistan

US actor Robin Williams (L) and US cycling legend Lance Armstrong perform onstage for ISAF troops during a “Holiday Troop Visit” by US celebrities at Kandahar Air Field on December 16, 2010. US Actor Robin Williams, together with Lance Armstrong and Lewis Black attended the event. The Taliban said December 17 that the US review into the Afghan war shows that President Barack Obama’s troop surge over the last 12 months has been a “failure”. AFP PHOTO/BEHROUZ MEHRI