The leftist group Think Progress has taken down and edited a video smearing the Tea Party movement as racist after being caught using three year old footage. The group kept in footage and images of leftist provacateurs who were caught infiltrating Tea Party rallies with racist messages.Think Progress originally released a 53 second YouTube video yesterday entitled "Tea Party Racism". That video is now blocked and was replaced this morning with an edited version that runs 50 seconds.Taken out was two short clips of a white man yelling, "Go home wetbacks." That footage turned out to have been posted to...