In response to an EPIC Freedom of Information Act lawsuit, the Department of Homeland Security and the Transportation Security Administration (TSA) released more documents about body scanners in US airports. The documents include many complaints from travelers who went through the devices. Travelers reported that they were not told about the pat down alternative or that they were going to be subject to a body scan by TSA officials. Travelers also expressed concern about radiation risks to pregnant women and the image capture of young children without clothes. EPIC has previously obtained whole body imaging vendor contracts, operational requirements, and procurement specifications from TSA. EPIC and Ralph Nader have urged President Obama to suspend the program until an independent review is completed. For more information see EPIC: Whole Body Imaging Technology.