title: The threat of biological attack: why concern now?
authors.affiliation: Potomac Institute for Policy Studies, Arlington, Virginia 22209, USA. siegrist@potomacinstitute.com
authors.forename: D W
authors.initials: DW
authors.lastname: Siegrist
mesh_terms: D001694:Biological Warfare; D006801:Humans; D014481:United States; D014754:Violence / Q000517:prevention & control