EPIC, along with Consumers Against Supermarket Privacy Invasion and Numbering (CASPIAN) and other leading privacy and civil liberties organizations, issued a Position Paper on the Use of RFID in Schools. Radio Frequency Identification is an identification tracking technology "designed to monitor physical objects," such as commercial products, vehicles, and animals. Some school districts are proposing to use RFID ID tags to monitor students, teachers, and staff. The report warns of significant privacy and security risks. If RFID techniques are adopted, the groups urge that schools adopt robust privacy safeguards. In 2006 and 2007, EPIC submitted comments to federal agencies recommending against the use of RFID technology to track air travelers. The State Department subsequently made changes to the "e-Passport," to address privacy and security concerns. For more information, see EPIC: Radio Frequency Identification (RFID) Systems and EPIC: Student Privacy.