If you can't make tomorrow's Fear/Sanity rally at Westlake Park - 9 a.m., in the rain? - then stay home and spread the fear and sanity on Facebook. It is now a technological breeze to electronically attack Glenn Beck or Sarah Palin - or Fox News in general - as three New York ad men did, using a hacker technique called letterbombing. The trio bombed Palin's Facebook page, for example, by posting a coordinated string of messages along with profile pictures replaced by letters, spelling out "Keep Fear Alive." It's a prank anyone can pull off, they say. For those wanting to strike back at wingnuttery or, for that matter, the plague of Facebook, go to the ad guys' Letterbombing.com web site. "Congratulations." the welcoming headline says. "You're about to become an Internet vandal." More details here and in the video below.