title: The continuing threat of intentional mass casualty events in the U.S.: Observations of federal law enforcement.
authors.forename: William P
authors.initials: WP
authors.lastname: Fabbri
mesh_terms: D003415:Crime / Q000331:legislation & jurisprudence*; D035082:Federal Government; D035846:Law Enforcement; D054527:Mass Casualty Incidents / Q000706:statistics & numerical data; D014481:United States