Palestinian Fatah supporters hold placards of Palestinian President Mahmoud Abbas during a rally in support of Abbas and against the Al-Jazeera TV station in the West Bank city of Ramallah, Friday, Jan. 28, 2011. The Qatar-based Arab satellite station published excerpts earlier this week from what it said is a cache of hundreds of documents covering a decade of Israeli-Palestinian negotiations. Al-Jazeera, widely watched in the Arab world, alleges that Palestinian President secretly made major concessions to Israel. (AP Photos/Bernat Armangue)

Palestinian Fatah supporters hold placards of Palestinian President Mahmoud Abbas during a rally in support of Abbas and against the Al-Jazeera TV station in the West Bank city of Ramallah, Friday, Jan. 28, 2011. The Qatar-based Arab satellite station published excerpts earlier this week from what it said is a cache of hundreds of documents covering a decade of Israeli-Palestinian negotiations. Al-Jazeera, widely watched in the Arab world, alleges that Palestinian President secretly made major concessions to Israel. (AP Photos/Bernat Armangue)