Richard Lambert ... the former FBI lead investigator on the anthrax investigation, says the bureau has tried "to railroad the prosecution of Ivins" and that "a staggering amount of exculpatory evidence" regarding Dr. Ivins remains secret. Congressman Rush Holt ... There were no fingerprints, no witness accounts, no physical evidence linking Ivins to the incident. We need a blue-ribbon commission to review the anthrax attack and the FBI's flawed investigation...