From the BBC:

Mahmoud Ahmadinejad
The tool detected changes to a page about Mahmoud Ahmadinejad
An online tool that claims to reveal the identity of organisations that edit Wikipedia pages has revealed that the CIA was involved in editing entries.

Wikipedia Scanner allegedly shows that workers on the agency's computers made edits to the page of Iran's president. ...

On the profile of Iranian President Mahmoud Ahmadinejad, the tool indicates that a worker on the CIA network reportedly added the exclamation "Wahhhhhh!" before a section on the leader's plans for his presidency.

A warning on the profile of the anonymous editor reads: "You have recently vandalised a Wikipedia article, and you are now being asked to stop this type of behaviour." ...

When asked whether it could confirm whether the changes had been made by a person using a CIA computer, an agency spokesperson responded: "I cannot confirm that the traffic you cite came from agency computers.

"I'd like in any case to underscore a far larger and more significant point that no one should doubt or forget: The CIA has a vital mission in protecting the United States, and the focus of this agency is there, on that decisive work."

Now, to be fair, the CIA isn't the only one playing this game. The Vatican's computers have reportedly been used to alter Wikipedia entries about Sinn Fein leader Gerry Adams, and that a U.S. Democratic Party computer had been used to change a Rush Limbaugh entry to say that most members of his audience are "legally retarded."

In the case of the CIA, what would be worse: That some hacks there are being paid to tweak Wikipedia entries, or that an Iranian spy infiltrated the CIA and used one of its computers to vandalize the Wikipedia page on Ahmadinejad, thus framing the agency?

Update

The Globe and Mail has a story today that provides some CanCon for this theme.