If it looks like a liar ...

The agency's objective is not to scare the public, officials said, and they have no credible intelligence that such attacks are planned. The department did not intend to release the document publicly, but a draft of it was inadvertently posted on a Hawaii state government Web site.

Right. The Department of Homeland Security isn't trying to induce hysteria by producing a list of a dozen doomsday scenarios that have no credible basis for viewing as likely possibilities and the Department just "accidentally" leaked this list to the public.

And the White House has no policy of controlling messages at public events.