He wants details of the measurements of oxygen isotopes in the attack anthrax, which reportedly identified where it was grown, and why logs showing late work in Ivins lab before the mailings did not focus the investigation on Ivins earlier.
(The isotope ratios indicate the anthrax was grown in the Northeastern US according to an earlier MSNBC report.
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Interesting Grassley focused on that one, of many, arcane scientific points.
Maybe REp. Holt, a physicist by training, is helping the Senator?
Making Ivins Crazy, August 11, 2008
http://www.governmentalityblog.com/my_weblog/2008/08/making-ivins-cr.html
Anthrax case spurs liability questions
http://www.usatoday.com/news/nation/2008-08-11-anthrax_N.htm
(am informed the cited “Turley” is a lawyer for Al-Timimi
Dina Temple-Ralston, Charles Ivins Stunned By Evidence Against Brother, August 10, 2008
http://www.npr.org/templates/story/story.php?storyId=93483076