Will they serve Tang at the clambake?

One of the more subtle rewards of The Simpsons is watching carefully to see where the writers have inserted a bit of dialogue for the sole purpose of trying to pull one over on the network censors. The most famous example of this being Homer's phone call to Bill Clinton from the episode when he became an astronaut. ("Hello, is this President Clinton? good. I figured if anyone knew where to get some tang it would be you.")

Now Lisa de Moraes writes:

Earlier this year, PBS received a sharply worded letter from new Education Secretary Margaret Spellings for using some of her department's Ready to Learn program funds on an episode of "Postcards From Buster" in which the title character, an animated rabbit, visits children in Vermont who are living with their two mothers. Spellings demanded that all mention of Buster's clambake be stricken from the offending episode.

Conan would be proud.