 The U.S. has supported Israel with weapons and intelligence throughout the war, but President Biden is now advocating a plan that could end the war with an exchange of captives and Israeli troop withdrawal from Gaza. In line with this plan, Egyptian mediators tell NPR Hamas has agreed to release civilian hostages taken from Israel in the October 7th attacks, but only if Israel agrees to a permanent end to the fighting after their release, something Israel's prime minister has refused to do. Egyptian mediators describe the talks as fragile.