U.S. intelligence agencies have their own Twitter. It’s called eChirp.

While there is significant tension between the intelligence community and social media companies in the wake of the NSA leaks from former contractor Edward Snowden and the firing of the White House staffer behind @NatSecWonk, it appears that they've been copying the social media format on their own networks for years. David Nakamura reports that the intelligence community has developed its own internal social media network called eChirp, which is patterned after Twitter.

It allows analysts to weigh in on breaking news from across several agencies, much like Twitter allows in the public sphere.  The project started as a pilot program in 2009 and expanded to the entire U.S. intelligence community in 2010.