If this Australian organization can do it, why can't we get ourselves together and do something similar?  I'm betting that they don't have a bunch of unnecessary regulations in place like the US does. Actually there are a lot of things I admire about Australia.

http://www.ozharvest.org/

And here is the verbiage from the Australian amendment protecting food donors:
http://www.ozharvest.org/media/page/Civil_Liability_Amendment_(Food_Donations)_Act_2005.pdf