title: Life on alert. Nation remains jittery as threats keep coming.
authors.forename: J
authors.initials: J
authors.lastname: Erich
mesh_terms: D000401:Aircraft; D000881:Anthrax; D023482:Bioterrorism; D002608:Charities / Q000458:organization & administration; D004632:Emergency Medical Services / Q000458:organization & administration; D006801:Humans; D009519:New York City; D010414:Pennsylvania; D023481:Terrorism / Q000523:psychology*; D014481:United States; D014768:Virginia