Paul Krugman (sub.req.) confronts the wingers who try to divert rational thought by crying "conspiracy theory:"
A conspiracy theory, says Wikipedia, "attempts to explain the cause of an event as a secret, and often deceptive, plot by a covert alliance." Claims that global warming is a hoax and that the liberal media are suppressing the good news from Iraq meet that definition. In each case, to accept the claim you have to believe that people working for many different organizations—scientists at universities and research facilities around the world, reporters for dozens of different news organizations—are secretly coordinating their actions.
But the administration officials who told us that Saddam had an active nuclear program and insinuated that he was responsible for 9/11 weren't part of a covert alliance; they all worked for President Bush. The claim that these officials hyped the case for war isn't a conspiracy theory; it's simply an assertion that people in a position of power abused that position. And that assertion only seems wildly implausible if you take it as axiomatic that Mr. Bush and those around him wouldn't do such a thing.
I can imagine Limbaugh looking thoughtful for a moment before saying: "Thanks, Paul! That sure clears things up!" But I have a very vivid imagination.