This research examines the impact the length of the planning process, the number of participants, and the volume of precursor activity has on the success or failure of terrorist plots in the United States. Data is drawn from the American Terrorism Study.
Gruenewald, Jeff, and Brent Smith, Katie Ratcliff, Summer Jackson, Ian Brecht, Brent Klein. October. “Infographic: Temporal Sequencing, Incident Sophistication, and Terrorist Outcomes" College Park, MD: START, 2016. https://www.start.umd.edu/pubs/START_TerroristOutcomes_Infographic_Oct2016.pdf