From ABC News:
Just two days after the U.S. Navy released the eerie video of Iranian speedboats swarming around American warships, which featured a chilling threat in English, the Navy is saying that the voice on the tape could have come from the shore or from another ship. [...]Yipes, I sure am glad Charlie's not in a position to push "the button" based on someone else's hearsay.
The Navy never said specifically where the voices came from, but many were left with the impression they had come from the speedboats because of the way the Navy footage was edited.
Today, the spokesperson for the U.S. admiral in charge of the Fifth Fleet clarified to ABC News that the threat may have come from the Iranian boats, or it may have come from somewhere else.
We're saying that we cannot make a direct connection to the boats there," said the spokesperson. "It could have come from the shore, from another ship passing by.
UPDATE: Juan Cole has a post that explains this incident in great detail. He said it's looking more and more like a serious error if not a Republican Party fabrication. Imagine that.