On November 5, 2017, Devin Patrick Kelly shot and killed 26 churchgoers and wounded 20 more in Sutherland Springs, Texas. Kelly was stopped by Stephen Willeford, who disrupted the shooting and wounded Kelly. Kelly purchased the firearms he used through federally licensed dealers. The National Instant Background System (NICS) approved of the sales, even though Kelly was a prohibited possessor. The Air Force had failed to enter the criminal data about Kelly into the NICS system.Survivors of the shooting sued the federal government for negligence, using, in part, the Federal Tort Claims Act (FTCA).In general, the Federal Government is immune...