AMERICAblog has written a post "the tale of two Gibbs." In it, he shows two clips of white house press secretary Robert Gibbs, both of which are about Don't Ask Don't Tell. The first, from January 2009 is shown here:
The second clip, from May 2009 is shown here:
Notice a difference? As pointed out by AMERICAblog and then concurred with at Box Turtle Bulletin, it may be because "he knows secretly we're on the path to getting screwed." Screwed indeed.