Consider the logic of the situation Mary Mapes has created for herself: either she knew the Bush memos were fakes or she didn't know. If she didn't know, she's not smart enough to have been doing the job she was being paid to do; if she knew, she's still not smart enough to have been doing the job she was being paid to do—for thinking she could get away with foisting fakes off on the public—and, in addition, she's completely lacking in scruples.
Each time Mapes makes a noise in public, she reminds us of these alternatives.
Keep talking, Mary...
Wacky pedia
Mapes was faulted for calling Joe Lockhart, a senior official in the John Kerry campaign, prior to the airing of the piece, and offering to put her source, Bill Burkett, in touch with him with regards to the then raging Swift Boat ads attacking Kerry’s service in Vietnam. The panel called Mapes’ action a “clear conflict of interest that created the appearance of political bias.” Mapes was terminated by CBS on January 10, 2005.