Tracking Anthrax Source

[Mark Talbot]

http://www.sfgate.com/cgi-
bin/article.cgi?file=/c/a/2001/10/09/MN203701.DTL&type=printable

"Like all living things, anthrax bacteria evolve with subtle
characteristics unique to each geographic area. Forensic biologists can
trace those changes in bacterial DNA. If old stockpiles of Soviet-era
anthrax were sold by rogue scientists to terrorists, genes could
identify those as well.
"