 Israel and Hamas are trying yet again to work out a ceasefire over the war in Gaza, there may be a note of optimism. As NPR's Greg Myhre reports, Hamas seems to have softened its position on at least one key issue. Hamas has not changed its central demands, which include a permanent ceasefire and a complete pullout of Israeli troops from Gaza. But it looks like Hamas will now accept a more gradual approach and won't insist on these steps at the beginning of a truce.