Fwd: Chatter

'The list of "observable behaviors" also points to so-called insider threats, and warns about individuals asking "unusual questions" about building maintenance or security procedures. 

Importantly, it speaks to the sheer volume of social media activity by pro-ISIS users, and the challenge that poses for analysts and investigators. 

"The large number of social media postings by US-based ISIL supporters is challenging for investigators in differentiating those supporters focused only on promoting pro-ISIL rhetoric, which may be protected speech, vice [versus] detecting those prepared to engage in violence on the group's behalf," the bulletin said. 

The bulletin warned the "reach and popularity" of social media platforms has made it easier for U.S.-based extremists to "identify and connect" with foreign terrorist organizations, which can "potentially direct" them. It said the FBI estimates there are "hundreds, possibly thousands" of people in the U.S. getting "recruitment overtures or directives to attack the United States," and ISIS is using social media in "unprecedented ways" to send messages advocating attacks in the U.S. '

http://www.foxnews.com/politics/2015/05/26/bulletin-warns-us-analysts-overwhelmed-by-pro-isis-social-media-military-posts/