1.   As a teen-ager, he blew off parts of two fingers in an experiment with explosive chemicals.

2.   Bees receive sugar water after finding an explosive chemical.

3.   A tell-tale list of explosive chemicals.

4.   But there was a lot more than explosive chemicals to worry about.

5.   He bought the explosive chemicals and directed the building of the bomb, they said, and recruited Muslim militants to help carry out the bombing.

6.   His car contained timing devices and enough explosive chemicals to level a building.

7.   However, those findings were dismissed after learning that bomb-sniffing dogs had been trained on that plane with the use of explosive chemicals.

8.   In a separate development in Seattle, prosecutors said they believed that Ressam burned himself with the kind of explosive chemicals he later tried to sneak across the border.

9.   One official said preliminary analysis of the debris is handled by portable machines that occasionally indicate positive signs of explosive chemicals when, in fact, none are present.

10.   Ressam is accused of trying to enter Washington state from Canada in a car carrying explosive chemicals and timing devices.