Click here to access article by David Sirota from In These Times.
I think that the author tries too hard to be "balanced" in reporting this issue. Clearly the authorities will maintain their anonymity and will seek to reveal all those who stand in the way of the interests of the ruling capitalist class. Surveilling authorities is often illegal. Thus, ruling class authorities are only exploiting the issue of right-wing attacks on civil liberties and assaults on people by increasing their surveillance of political activists.
It is precisely the right-wing propaganda organs of the ruling class that spew out hate messages that provide an acceptable climate for crazies to act out their fantasies. (See this excellent piece for an explanation of this argument.) So, instead of cracking down on propagandists and cultural productions that encourage hate toward minorities, they use sensational incidents to further the surveillance of, and crackdown on, political activists. The cultural producers of the ruling class largely create the problem, and then use the problem against political dissidents.