If You See Something, Say Something, travel safety campaign
If you see something you know shouldn't be there—or someone's behavior that doesn't seem quite right—say something.
Real ID information
The Department of Homeland Security (DHS) announced on December 20, 2013 a phased enforcement plan for the REAL ID Act (the Act), as passed by Congress, that will implement the Act in a measured, fair, and responsible way.
Drones use wi-fi for 3D mapping to 'see' through walls
The University of California is using wi-fi enabled drones to create a system of 3D imaging which could potentially allow them to "see" through walls.