Kappelmeister writes "The Washington Post has an article about red-light-running and speeding cameras all over D.C. that have issued over half a million citations to date. (Police send you a ticket and photographic proof up to a month after the fact.) Though the cameras successfully reduce dangerous driving and boost the city's revenue, a lot of wrongful citations fall through the cracks and give some that guilty-until-proven-innocent feeling. Once again, how far is too far?" I came across this much more informative investigation of D.C.'s traffic cameras a few weeks ago. It's heavy on facts and figures, and hammers home the observation that an extra second of yellow light is at least as good at promoting good behavior, but much less lucrative for the local government and the contracting firm.