Last month’s arrest of four men from Newburgh who allegedly planned to bomb two synagogues in the Bronx and use a missile to shoot down military planes at an Air National Guard base in Newburgh is this country’s most recent claimed incident of domestic terrorism. Published reports indicate, however, that at the center of the plot was a government informant who actively recruited a group of unsophisticated men, secured for them a surface-to-air missile and fake bombs, and even offered cash so that one of the accused plotters could pay for a brother’s kidney transplant. These reports raise immediate questions about possible entrapment and provide an opportunity to review the history and contours of this important defense against government misconduct.

Origins in the Supreme Court

The U.S. Supreme Court did not recognize entrapment as a valid defense until 1932, when it decided Sorrells v. United States.1 In that decision the Court outlined basic tenets of the defense that remain in effect to this day and also identified the fundamental tensions in the very notion of the defense.