In 2012, EPIC sued the DHS to begin a public comment process on the airport body scanner program – and won based on privacy concerns.

http://epic.org/privacy/airtravel/backscatter/

“EPIC has filed a lawsuit to suspend the deployment of body scanners at US airports, pending an independent review. Body scanners produce detailed, three-dimensional images of individuals. Security experts have described whole body scanners as the equivalent of “a physically invasive strip-search.” The Transportation Security Administration operates the body scanner devices at airports throughout the United States. On July 2, 2010, EPIC filed a petition for review and motion for an emergency stay, urging the District of Columbia Court of Appeals to suspend the Transportation Security Administration’s (TSA) full body scanner program. EPIC said that the program is “unlawful, invasive, and ineffective.” EPIC argued that the federal agency has violated the Administrative Procedures Act, the Privacy Act, the Religious Freedom Restoration Act, and the Fourth Amendment. EPIC cited the invasive nature of the devices, the TSA’s disregard of public opinion, and the impact on religious freedom.”