The other thing to do is to place a signature on your emails, every email with a list of words that have been flagged. If everyone did that the NSA would not be able to sort through all the digital noise.
For example:
Bomb, jihad, Conservative, IRS, Homeland Security, Obama, Terror, Terrorist, Terrorism, Nixon, Airplane, Air port, Dirty Bomb, Radiological Device, Biological Device, Blow up, Destroy, Halal, Jews, Catholics, Holy War, Defend, Provoke, Bush, Clinton, Snuff out, Islam, Border, Immigration, Death of a President, Fatwa, Fire fight, Grenade.
Have fun with this one NSA
in the 80s, having to scan 10m emails a day might have been an issue.
today, it’s pretty simple to scan thru 100m emails in an hour.
current tech is analyzing images in near real-time. lots and lots of images.
text is trivial by comparision