Once common on skin, anthrax is deadly in lungs

An enlarged copy of an envelope addressed to Sen. Patrick Leahy, D-Vt., that contained anthrax, is shown during a news conference on Capitol Hill in Washington in this Saturday, Nov. 17, 2001 file photo. A top U.S. biodefense researcher, Bruce E. Ivins, 62, apparently committed suicide just as the Justice Department was about to file criminal charges against him in the anthrax mailings that traumatized the nation in the weeks following the Sept. 11, 2001, terrorist attacks, the Los Angeles Times reported in their Friday Aug. 1, 2008 editions. (AP Photo/Rick Bowmer, FILE)