Police block protesters as they try to march towards the U.S. Embassy during a rally in Manila, capital of Philippines, Feb. 24, 2009. The protesters called on Tuesday here for the immediate termination of the Visiting Forces Agreement (VFA) and the suspension of the Philippines-US joint military exercises. The VFA, effective since May 27, 1999, is seen by some critics as granting immunity from prosecution to U.S. military personnel who commit crimes against Filipinos. [Luis Liwanag/Xinhua]