It's not quite as breezy as American talk radio or comedy podcast type-fare, but part one of the BBC show is worth a listen.
Also, courtesy of MetaFilter, is a summary of a 2010 UC Berkeley debate by five professors over how food reflects and defines culture as well as how it contributes to political, ethnic, and religious divisions. The document covers everything from Nazi dietary propaganda to anti-GMO protests and global McDonald's franchises. And as it turns out, the Israelis and Palestinians are even fighting over the right to claim falafel.
In any case, if you have some time to digest a few high-brow discussions this week, you could do a lot worse than these.