Glad they got this guy...

But whatever happened to the real anthrax investigation? That one has seemingly completely disapeared. Some of you may have heard Keith Olberman reference this in his brilliant commentary before the election:

LOS ANGELES, California (AP) -- A man suspected of mailing more than a
dozen threatening letters containing white powder to Rep. Nancy Pelosi, Jon
Stewart and other high-profile figures was in custody and awaiting a court
appearance.
Prosecutors were expected to file a criminal complaint against
Chad Conrad Castagana, 39, in U.S. District Court in Los Angeles on Monday. He
was arrested Saturday for allegedly conveying false information and sending
threats by U.S. mail.
Preliminary tests showed the white powder was not
hazardous, officials said.
The letters, which had fake return addresses, were
received by Pelosi, a California Democrat who is in line to become speaker of
the House; comedians Stewart and David Letterman; Democratic Sen. Charles
Schumer of New York; and MSNBC host Keith Olberman.