As of July, U.S. driving declined for nine months straight. Average gas prices have dropped almost 50 cents since then — I’ll be very curious to see the figures for Aug. and Sep.

This seems like a good time to revisit the fact that our transportation infrastructure is funded by gas taxes and thus is harmed by a reduction in driving, whereas any number of other social problems — wrecks, congestion, air pollution — benefit. Seems like something to revisit in next year’s transportation bill.

Here’s a question for y’all: how should transportation infrastructure be funded? Va. governor Tim Kaine and Transportation Secretary Mary Peters are quoted waving their hands at "public-private partnerships," which sounds fine, but I’d like a little more detail.