Jeff Gannon/James Guckert told Newsweek he might sue Media Matters and possibly other bloggers.

He doesn't say on what grounds he would file a suit (essentially, he had become a pseudo-public figure in the White House press corps, knowingly had his previous Internet business documented in public records and even willingly did a CNN interview.)

No doubt, Gannon/Guckert's detractors acted with extreme - some might say even giddy, frightening - malice, but truth has always been an absolute defense. And that's something that Media Matters' David Brock knows very well.