Israel will become much more flexible in regards to the list of prisoners Hamas wants freed, a source involved in the negotiations for the release of kidnapped soldier Gilad Shalit said Thursday. According to the source, several days after a visit to Cairo by Defense Ministry official Amos Gilad, the Israeli side gave the impression that it plans to exercise flexibility over the prisoners' list and that the bone of contention between Hamas and Israel will eventually revolve around a small number of names included in the list.