First we have FALCON, or Force Application and Launch from Continental United States (we hope they pay their acronym guys really well). The FALCON program is mainly focused on the X-41 CAV -- an alien-looking, cone-shaped "near-space" plane that can go 13,000 miles per hour (which is 20 times the speed of sound).
This is either a 3-D model of it or an official DARPA bicycle seat.
If you don't understand what 20 times the speed of sound gets you, how about this: It can go anywhere in the world, and photograph or kill anyone, in an hour or so.
But DARPA is also capable of thinking small -- the kind of small that is somehow creepier than a magical instant-death murdership.
"An estimated 80 percent of conversations go unrecorded. DARPA can fix that."