1.   Most mail bombs contain a flat battery, like the type used in watches.

2.   And, coincidently, some court workers in Phoenix attended a previously scheduled seminar on mail bombs.

3.   Bellow also said that, unlike the protocol for mail bombs, there are no procedures in place for unmarked mail containing potentially deadly chemicals.

4.   A federal prosecutor read a statement by David Gelertner, a computer scientist at Yale who was injured when he opened a mail bomb at his campus office.

5.   A mail bomb exploded Monday in the offices of a forest-products trade group in Sacramento, Calif., killing one person, officials said.

6.   A mail bomb exploded Monday in the offices of a forest-products trade group, killing the chief lobbyist, authorities said.

7.   A mail bomb exploded on Monday in the offices of a forest-products trade group, killing the chief lobbyist, the authorities said.

8.   But does it provoke you to mail bombs that blow the limbs off scientists?

9.   But Monday, the same day a mail bomb killed a timber industry lobbyist in Sacramento, four letters from the Unabomber were received by others.

10.   Freeman said the letters did not warn of the mail bomb that killed Murray, who died when he helped an office receptionist open the parcel.