Desperation growing in Gaza

Desperation is growing in Gaza, where Israel’s military offensive is pushing further south, hostages remain in Hamas detention, and hundreds of Palestinians have been killed since the temporary ceasefire ended last week. Matt Galloway talks to Isam Hammad, who is trying to get his family out via Gaza’s southern border; Médecins Sans Frontières International President Dr. Christos Christou, who has just returned from the region; and Israel's ambassador to Canada Iddo Moed.