Palestinians burn tyres during brief clashes with Israel security forces in Qalandiya checkpoint, near the West Bank city of Ramallah May 14, 2011. Violence erupted on Israel's borders with Syria, Lebanon and Gaza on Sunday, leaving at least eight dead and dozens wounded, as Palestinians marked what they term "the catastrophe" of Israel's founding in 1948. Israeli troops shot at protesters in three separate locations to prevent crowds from crossing Israeli frontier lines in the deadliest such confrontation in years. [Photo/Agencies]  

A Palestinian boy looks at an Israeli border police officer pointing his weapon during brief clashes between Palestinians stone throwers and Israeli security forces at Qalandiya checkpoint, near the West Bank city of Ramallah May 14, 2011. [Photo/Agencies]