Palestinians report that Israeli attacks in Gaza have been intense and news agencies are reporting that at least 18 people have been killed so far today. Of those, only two of the dead have been confirmed as militants. Late Monday, three Israeli soldiers were killed by what Israeli officials say was an errant tank round. Additionally, aid agencies warn that an already dire humanitarian situation is deteriorating. Mike Sargent, from our partner the BBC World Service, joins us to report the latest.