Life
Helping troops tell friend from foe
The US and its allies have been trying hard to improve a dismal record of attacking their own soldiers
News
Technology
US aims to use heat-beam weapon by 2010
News
Technology
US anti-missile shield stirs up protest
News
Technology
China dismisses ‘space arms race’ fears
News
Technology
Cloud of darts could neutralise buried landmines
News
Space
Hypersonic weapons projects to begin test flights
News
Technology
Invention: Taser gets tougher
News
Health
How scared should we be of polonium?
News
Physics
Editorial: Cloak, dagger, spies and poison
Opinion
Technology
Compact radar tracks movement through a wall
A laptop-sized device could let police or soldiers check whether anyone is lurking inside a building before bursting in
News
Health
True cost of cluster bombs
News
Technology
Armchair warlords and robot hordes
Opinion
Space
US takes unilateral stance in new space policy
News
Technology
Biodefence special: Fortress America?
News