FBI admits missteps, but defends anthrax probe

FBI officials defended on Monday the scientific evidence linking a US Army scientist who committed suicide to the deadly 2001 anthrax attacks, but acknowledged missteps occurred early in its investigation. The FBI marched out a panel of outside scientific experts in an effort to end lingering doubts on whether Dr. Bruce Ivins was solely responsible for the attacks that killed five people and shook a nation already reeling from the September 11 terrorist attacks on New York and Washington.