Terrorist watch lists in the United States and elsewhere continue to grow, as the times become increasingly violent. How many people are on such lists, and is surveillance against them working as it should? Julian Huguet explains.
The USA's super-secretive spy agency patented more than encryption methods.
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?
A new invisible border monitoring system could radically alter how the U.S. conducts border security.
Despite popular belief, most Americans' lives changed very little after September 11, 2001.