2009-05-21T120000Z_2019153242_GM1E55L1F8101_RTRMADP_3_USA-KOSOVO-BIDEN

Photo: Ethnic Albanian children wave U.S. and Kosovo flags as they welcome U.S. Vice President Joe Biden in Pristina Airport May 21, 2009. Biden received a tumultuous welcome upon his arrival to Kosovo on Thursday just hours after leaving Serbia where thousands of police kept streets empty to avoid protests. Credit: REUTERS/Hazir Reka