In Jordan, inventors try to make Gaza air drops less deadlyAmid obstacles in getting food to Gaza, a U.S. aid group tests new ideas for non-lethal ways of dropping aid. NPR's Jane Arraf caught up with one U.S.-based aid group working on a less dangerous way of dropping aid. (SOUNDBITE OF TAPE RIPPING)ARRAF: He's with a California-based aid group called Rebuilding Alliance that has operated in Gaza for years. (SOUNDBITE OF PHONE RINGING)ARRAF: Donna Baranski-Walker, the founder of Rebuilding Alliance, is an MIT engineer. But the aid group believes it's one of the few ways now to help feed starving people.