White Powder Envelopes Found in Dallas - kcentv.com - KCEN HD - Waco, Temple, and Killeen

(KCEN) -- There were some tense moments yesterday afternoon in downtown Dallas after several white powder-filled envelopes were opened inside a criminal court building.

The envelopes were discovered inside the 203rd Court, which was evacuated while Hazmat teams tested the substance.

When officials deemed the contents not harmful, the all-clear was given.

Hundreds of hoax white-powder letters have been received nationwide since the 2001 anthrax scare following 9-11.

Many of those originated or ended up in the Dallas area.