Economics Lesson (Comic Strip Edition)

In light of ideas floating around that we need to end our dependency on foreign oil, this Dilbert might possibly the best-ever comic strip on energy economics (not that there's probably much competition for that title):

If you don't get it, here's some definitions of fungible. There are plenty of good reasons why you might want to buy a fuel efficient car. However, using it to take money out of the pockets of the supporters of terrorism isn't one of them.

Via Adrienne, guest blogging at Nobody's Business.