A Department of Homeland Security Inspector General report highlighted many challenges to facial recognition at airports. The problems of accurate biometric matches apply to all travelers, and particularly U.S. citizens. According to the Inspector General's report, "U.S. citizens accounted for the lowest biometric confirmation rate." A report obtained by EPIC last year through a Freedom of Information Act lawsuit revealed that iris imaging and facial recognition for border control did not perform at a "satisfactory" level. In a statement to Congress earlier this year, EPIC warned that biometric identification techniques are unreliable and lack proper privacy safeguards.