...goes to Jonah Goldberg, commenting on a recent decision upholding the Constitutionality of "virtual" kiddie Porn. He made the comment in his column over at NRO:

For some reason the editorial pages, Congress, hordes of academics, and, of course, Hollywood types, honestly, truly believe that the state cannot proscribe images of women getting it on with horses in public libraries for fear we'll skid down the slippery slope to tyranny. At the same time, however, they fervently believe that the federal government can regulate the content of political ads leading up to an election.

The whole column is well worth reading, by the way. It's not just funny, it makes some very important points that not enough people think about.