That's the threat anyway. The airline is ticked off over a scene in the network's "Path to 9/11" docudrama that has terrorist Mohammed Atta walking up to an American Airlines counter in Boston and later being allowed to board - despite Atta being flagged for buying a last-minute ticket. Never happened. The warning popped up when Atta boarded a plane from Maine to Boston - and the airline wasn't American. Here's what an American spokesman said in an e-mail to the liberal Web site americablog.blogspot.com:

"I think it is important for you to know that ABC had factual errors in its dramatization, and we are looking at possible legal actions as a result. According to the 9/11 Commission Report, it was not American Airlines, nor was it even the right airport that was depicted. Please know this was a tragic incident in our company's history, and we hope you will be sympathetic to our employees and our airline on this day especially. Again, we are outraged by this situation, and we alerted ABC about its gross error. It is very unfortunate."

Ad Age reported that Disney-owned ABC had no comment.