Sadly there is lots to cover here so if you find the title of any of the following links interesting go check um out. They all get the YST stamp of approval.
http://www.engadget.com/2007/04/12/darpa-developing-threat-sensing-binoculars/
http://www.engadget.com/2008/09/27/darpas-super-resolution-vision-system-uses-heatwaves-to-magnify/
http://www.engadget.com/2007/06/29/darpa-wants-to-build-a-better-internet/
http://www.engadget.com/2006/07/22/darpa-tasks-lockheed-with-developing-maple-seed-shaped-uav/
http://www.engadget.com/2008/07/18/darpa-moves-ahead-with-electronic-tags-for-soldiers/
http://www.engadget.com/2007/07/19/darpa-plans-crystal-ball-to-predict-the-future/
http://www.engadget.com/2007/07/02/darpa-funds-laser-guided-bullets/
