Winter rains are beginning in Gaza, raising fears of flooding in overcrowded displacement camps and makeshift shelters where hundreds of thousands of Palestinians are living. Families are using whatever materials they can find to protect themselves, but humanitarian agencies warn that supplies are far from adequate. Karl Baker, regional crisis coordinator for the Gaza response at the UN's migration agency, the IOM, spoke to UN News' Ezzat El-Ferri in Amman. He says preparing families for winter is just one of the challenges ahead