Did Bruce Ivins Hide Attack Anthrax From the FBI? - ProPublica
http://www.propublica.org/article/did-ivins-give-the-fbi-a-fake-sample-of-his-own-anthrax
a re-examination of the anthrax investigation by Frontline, McClatchy and ProPublica turned up new evidence that challenges the FBI’s narrative of Ivins as a man with a guilty conscience who was desperately trying to avoid being discovered.
Records recently released under the Freedom of Information Act show that Ivins made available a total of four sets of samples from 2002 to 2004, double the number the FBI has disclosed. And in subsequent FBI tests, three of the four sets ultimately tested positive for the morphs.