A Lebanese leftist waves an anti-U.S. and anti-Israeli sign at a U.S. embassy delegation's convoy after the delegation left the central government building in the southern city of Sidon, April 7, 2011. A group of youths chanted anti-U.S. slogans at the delegation in Sidon on Thursday, a witness said, the second incident in less than a week targeting embassy officials. REUTERS/Ali Hashisho (LEBANON - Tags: POLITICS CIVIL UNREST)