From the Unclassified Summary: "We conducted covert tests to determine the effectiveness of TSA's checkpoint screening equipment and screener performance in identifying and resolving potential security threats at airport security checkpoints. We identified vulnerabilities with TSA's screener performance, screening equipment, and associated procedures. Details related to our testing results presented in the report are classified or designated Sensitive Security Information. We are making eight recommendations that when implemented, should improve TSA's screening checkpoint operational effectiveness."
Department of Homeland Security, Office of Inspector General, Report No. OIG-17-112
Department of Homeland Security, Office of Inspector General: http://www.oig.dhs.gov/