It says on page 11 of this report that he doesn't have a doctorate degree, so maybe he finished his dissertation but didn't pass his defense??? I'm not sure I would trust his CV to be correct.
http://www.implosionworld.com/Article-WTC9-6-06.pdf
He is probably tenured and cannot be fired. This is generally a good policy because it protects free speech and freedom of scholarly thought and research. This too shall pass. His grant money will dry up, then his grad students will have to move to a different lab that has money to pay them.
The system takes care of this stuff.