But it looks like the feds were more worried about the left-leaning Occupy movement:
In August 2011 the FBI informed New York Stock Exchange officials of a "planned Anarchist protest titled Occupy Wall Street" scheduled for September 17, 2011. The FBI also notified several New York businesses of the impending protests, according to the documents.
The documents, released under a Freedom of Information Act request, contain references to an October 2011 FBI domestic terrorism briefing in Jacksonville, Florida, regarding the spread of the Occupy Wall Street movement and "the emergence of Occupy chapters in and around the North Florida area." FBI officials also recommended setting up tripwires with Occupy event organizers
The FBI was concerned that the Occupy venues could provide "an outlet for a lone offender exploiting the movement for reasons associated with general government dissatisfaction," according to the documents.
At a Joint Terrorism Task Force meeting in November 2011, FBI agents reported about Occupy Wall Street activities in Anchorage, Alaska, according to the documents.The documents also described instances from California, Colorado Mississippi, Virginia, and other states involving cooperation between the FBI and other agencies.
FBI counterterrorism agents are traditionally tasked with investigating and curtailing both domestic and foreign terrorism threats.
The agency prepared surveillance and precautionary measures despite acknowledging that Occupy Wall Street organizers "did not condone the use of violence during their events" and, and that the organizers had called for peaceful protest, according to the documents.