Hamas leader in exile Khaled Meshaal (R) waves goodbye while standing next to Hamas prime minister in the Gaza Strip Ismail Haniya (C) and Hamas leader Izzat al-Rishq (L), upon his departure from the Gaza Strip on December 10, 2012 in Rafah, on the border with Egypt. Exiled Hamas chief Khaled Meshaal left Gaza after a historic first visit to the tiny Palestinian enclave. AFP PHOTO/ SAID KHATIB
In this handout image supplied by the PPM, Hamas leader in Gaza Ismail Haniyeh receives Fatah Central Committee member Nabil Sha'ath on February 4, 2010 in Ash-Shati Refugee Camp, Gaza Strip. The visit of Fatah official Sha'ath is the first since the violent takeover of the Strip by Hamas in 2007, with Sha'ath expected to hold talks focused on achieving reconciliation between Hamas and Fatah.