SCIENCE
11 January 2006
Wednesday 11 January 2006 21:00-21:30 (Radio 4 FM)
Last July's devastating bomb attack in London, and the similar one in Madrid, might have been thwarted had there been an ability to detect potential bombers before they were able to enter the subway system.
Quentin Cooper look at how different technologies are being developed that may help prevent such attacks in the future.