For falsifying evidence and damages brought about by their ACORN Sting Videos!
Here is the relevant quote:
While the video by James O'Keefe and Hannah Giles seemed to show three ACORN workers advising a prostitute how to hide ill-gotten gains, the unedited version was not as clear, according to a law enforcement source.
"They edited the tape to meet their agenda," said the source.
Surely ACORN can file a Civil Suit over this? If nothing else, the publicity will help restore ACORN's reputation.