1.   Area postal inspectors also responded to calls about suspicious substances from postal locations.

2.   A facility is closed only when a suspicious substance is detected.

3.   A fire engine and a van respond to calls reporting suspicious substances.

4.   Georgia National Guard officials are still seething that the FBI refused to allow their specially trained team to test a suspicious substance at the U.S. Army Reserve Command headquarters.

5.   Handley said the building was locked down after the suspicious substance was discovered.

6.   In Chicago, the rise in call volume to the police has changed how the department responds when someone believes a suspicious substance has arrived in the mail.

7.   Several other airlines, including United and US Airways, have endured delays after reports of suspicious substances.

8.   The state public health lab, which normally handles one request per month for testing of a suspicious substance, is now averaging a dozen per day.

9.   The shutdown was due to the discovery of some type of suspicious substance or package, according to Burbank police.

10.   There was no indication that the worker had come in contact with the suspicious substance.