US soldiers from 1st Platoon Alpha Company 3-187 3BCT 101 Airborne walk during a patrol in Yosef Khel district of Paktika province on April 3, 2010. The United States has rejected President Hamid Karzai's anti-foreigner outburst as "troubling" and "preposterous," prompting a hurried effort by the Afghan leader to make amends. AFP Photo/Massoud HOSSAINI (Photo credit should read MASSOUD HOSSAINI/AFP/Getty Images)