This does not fit exactly what is happening at USM re: Dvorak and others who have questionable credentials for the jobs they have, but this does show that this a very real issue wherever it occurs and is not just the concern of "disgruntled, spoiled faculty."  Notice particularly the quote from Contreras.

From CBS News:  Assistant Secretary of Defense Charles Abell has a master's from Columbus University, a diploma mill Louisiana shut down. Deputy Assistant Secretary Patricia Walker lists among her degrees, a bachelor's from Pacific Western, a diploma mill banned in Oregon and under investigation in Hawaii.

CBS News requested interviews with both officials. The Pentagon turned us down, saying, "We don't consider it an issue."

But using such a degree is a crime in some states. Alan Contreras cracks down on diploma mills for Oregon, a state that's taken the lead on this issue.

"You don't want somebody with a fake degree working in Homeland Security," says Contreras. "You don't want somebody with a fake degree teaching your children or designing your bridges."

But we found employees with diploma mill degrees at the new Transportation Security Administration, the Defense Intelligence Agency and the Departments of Treasury and Education, where Rene Drouin sits on an advisory committee. He has degrees from two diploma mills including Kensington University.