Comparisons to Hitler are inaccurate in my opinion. Ayers and his merry band of terrorists are really much more in line with Pol Pot and the Khmer Rouge.
http://www.mikefrancesa.com/wordpress/?p=1601
Of course Chris Matthews thinks the Weatherman had values:
Chris Matthews: The motive of the Klansman, again is racist repression. It isn’t the same as being against a war that is wrong.
Chris Matthews: “One guy was anti-war, the other guy was anti-black. There’s a difference of values there.