Today EPIC filed a Freedom of Information Act request with the Department of Homeland Security for studies conducted by the agency and third parties concerning radiation and health testing of body scanners. The EPIC request follows a recent report by Dr. David Brenner to the Congressional Biomedical Caucus that radiation exposure may be up to twenty times greater than the DHS acknowledged. In April 2010, several scientists urged Presidential Science Adviser Dr. John P. Holdren to conduct further evaluation of the health risks of body scanners. EPIC is pursuing FOIA litigation against the DHS regarding full body scanners, and has also filed a lawsuit to halt the use of the devices. For more information, see: EPIC: Body Scanners and EPIC v. DHS.