> My own technology that I worked on was primarily developed as a low-cost surface technique, so if you had explosive residue on your hands or baggage our detec

> My own technology that I worked on was primarily developed as a low-cost surface technique, so if you had explosive residue on your hands or baggage our detector would alarm. (1) I just got back from DisneyWorld. One night the fireworks smoke drifted across where I was standing.... (2) The person who packaged the explosives need not be the person carrying them.