1.   And Ashcroft warned the public not to open any suspicious mail.

2.   Ashcroft said investigators hope that releasing the photographs will alert Americans to suspicious mail if more letters are sent.

3.   At Warner Bros. Studios in Burbank, workers have been issued gloves, masks and plastic bags for suspicious mail.

4.   -- FBI offices nationwide are being swamped with calls about suspicious mail since anthrax was detected in Florida, New York, Washington, D.C., and Nevada.

5.   After that attack, MIT police circulated a set of guidelines about suspicious mail, said spokesman Ken Campbell.

6.   Have you handled any suspicious mail?

7.   His idea was an airtight box with attached gloves to open suspicious mail.

8.   If the postal service decides to use technology to irradiate suspicious mail, the point may eventually be moot, Merritt said.

9.   Japan has tightened postal checks and has urged its citizens to report suspicious mail to the police.

10.   Law enforcement officials say they are receiving a large number of calls from people reporting suspicious mail, but none have been deemed a health threat.