Hamas leader Mahmoud Zahar said talks on exchanging captured IDF soldier Gild Schalit for Palestinian prisoners have frozen. Zahar said the Egyptian-mediated negotiations broke down because Israel would not meet Hamas demands to release prisoners convicted of murdering Israelis. Zahar also said Wednesday that the talks have stalled because Israel and Egypt won't open their border crossings with Gaza. Both countries sealed the border after Hamas seized power in Gaza in June 2007. Hamas wants Israel to free hundreds of Palestinian prisoners in exchange for the soldier. Israel has balked at Hamas' demand to release convicted murderers.