A NYT opinion article that provides an updtae to the debate and cited DHS report:http://www.nytimes.com/2015/06/16/op...reat.html?_r=0

The main terrorist threat in the United States is not from violent Muslim extremists, but from right-wing extremists. Just ask the police.In a survey we conducted with the Police Executive Research Forum last year of 382 law enforcement agencies, 74 percent reported anti-government extremism as one of the top three terrorist threats in their jurisdiction; 39 percent listed extremism connected with Al Qaeda or like-minded terrorist organizations. And only 3 percent identified the threat from Muslim extremists as severe, compared with 7 percent for anti-government and other forms of extremism.


(At the end) As state and local police agencies remind us, right-wing, anti-government extremism is the leading source of ideological violence in America.