Driving home today I saw a guy standing by a busy downtown intersection holding a large sign that read, “9-11 Was An Inside Job.” It doesn’t quite rise to seeing a giant muppet-like creature holding the same sort of sign, but maybe he’s working on it.

_Update_: Here’s a recent piece from the _Chronicle_ about 9-11 Conspiracy Theories in academia. (Hat tip: Evan Goldstein.)