Ah, the wonders of video editing. After reading this blog post and watching Rachel Maddow's explanation of the whole hoax, it's crazy people can get away with stuff like this so easily.
Maddow did a great job showing viewers the subtle details in the video that proved it was a hoax, in addition to revealing the entire unedited version.
However, other media persons were not so quick to doubt the truthfulness of this video. As Tomanelli points out, Associated Press and Slate believed and praised Andrew Breitbart's big scoop on ACORN. (The Associated Press link is no longer available.)
It's not to say journalists should be skeptical of every story they read, video they watch or audio clip they hear, but at the same time, always be skeptical, because if it's too good to be true, it probably is.