So back in the nineties there were posts on Free Republic suggesting that a f:fth co1umn (back then I used this term and caused the thread to be shut down) was sending brown envelopes to Pelosi and Hastert threatening blackmail. Nothing ever came of it (obviously) but it DID cause me to inadvertently subscribe to a shady magazine that had Timothy McVeigh and on the cover and contained articles about subverting government.
For sometime after that I was paranoid everytime I heard a helicopter that sounded black.