Hamas leader Ismail Haniya speaks with Palestinian security officers, before giving a speech during a mass prayer on the first day of the Muslim holiday of Eid al-Adha, in the central Gaza Strip, on October 26, 2012. Muslims around the world celebrate Eid al-Adha to mark the end of the haj by slaughtering sheep, goats, cows and camels to commemorate Prophet Abraham's willingness to sacrifice his son Ismail on God's command. Photo by Abed Rahim Khatib / Flash 90

Palestinians slaughter a cow on the first day of the Muslim holiday of Eid al-Adha in the Rafah Refugee Camp, southern Gaza Strip. Muslims around the world will celebrate Eid al-Adha or Feast of the Sacrifice by slaughtering sheep, goats, cows and camels to commemorate Abraham's willingness to sacrifice his son Ismail on God's command. Eid al-Adha marks the end of the annual pilgrimage to the Saudi holy city of Mecca. October 26, 2012. Photo By Abed Rahim Khatib / Flash 90

Hamas leader Ismail Haniya delivers a speech during a mass prayer on the first day of the Muslim holiday of Eid al-Adha, in the central Gaza Strip, on October 26, 2012. Muslims around the world celebrate Eid al-Adha to mark the end of the haj by slaughtering sheep, goats, cows and camels to commemorate Prophet Abraham's willingness to sacrifice his son Ismail on God's command. Photo by Abed Rahim Khatib / Flash 90