1.   Analyzing the powder should be a top priority, said Bob Holland, retired ATF agent and explosives expert from Atlanta.

2.   He said the powder was being analyzed at a lab.

3.   Scientists also repeatedly analyzed the powder from the anthrax-laced envelopes for signs of chemical additives that would point to Iraq.

4.   Experts from the U.S. Naval Medical Research Unit in Egypt analyzed the powder.

5.   Experts from the U.S. Naval Medical Research Unit in Egypt analyzed the powder and found no anthrax.

6.   He said concerns about the pink-colored powder prompted calls to Cambodian police and health officials to take the letter and analyze the powder.

7.   Russian emergency authorities were analyzing the powder, the official said.