Dan Charles

Technology

Technology: Critics home in on Patriot missile

Can we stop the databank robbers?: More and more valuable information is stored on computer networks. Keeping out vandals and thieves has become a priority

Fate of uranium from bombed reactor unknown

American scientists clash over cash

Gulf troops may be guinea pigs for untested drugs

Iraq: nuclear secrets or rumours?

Technology

Technology: Metal gears shift down a size

Americans set the table for engineered food

American pressure thwarts studies on 'abortion pill'

Iraq opens its doors to nuclear inspectors

Science: Cocaine and alcohol make a heart-stopping cocktail

Science: Opium deprivation could make you suicidal