Palestinians shout slogans to support Palestinian President Mahmoud Abbas, calling him "Abo Mazen," his name locally known, ahead of his meeting with U.S. President Barack Obama next week, while holding a rally in the West Bank town of Tubas on Sunday, March 16, 2014. The pictures at center and far right is Abbas and late Palestinian leader Yasser Arafat, center right. (AP Photo/Mohammed Ballas)