All Items Tagged

“national security”

Jul 31, 2014 01:20 PM ET // AFP
The USA's super-secretive spy agency patented more than encryption methods.
Mar 25, 2014 08:32 AM ET // Nic Halverson
StratoBus, a hybrid drone satellite, is expected to carry out missions high above air traffic and jet streams. Continue reading →
Four dry-ice bombs were discovered at the Los Angeles International Airport recently, two of which exploded. How are they made?
Dec 22, 2010 09:30 AM ET // David Teeghman
A new invisible border monitoring system could radically alter how the U.S. conducts border security.
Sep 9, 2011 06:38 PM ET // Benjamin Radford
Despite popular belief, most Americans' lives changed very little after September 11, 2001.