[snowwrestler]

It doesn't seem like a clear-cut line to me; aren't Internet communications "signals"? Isn't that why the NSA has taken the lead on Internet intelligence operations up to this point? So how will what the CIA is planning to do be qualitatively different from what the NSA is already doing?

I agree with the parent; there is substantial overlap in capabilities and responsibilities among the agencies that do intelligence work for the U.S. government.

These overlaps led directly to the mistaken Iraq invasion. DOD and CIA reported very different things about the Iraq WMD program, and the U.S. leadership could choose which one they wanted to believe. Cheney and Rumsfeld convinced Bush to listen to DOD, and we all know how that worked out.