The United States Customs and Border Protection (CBP) employs radio frequency identification technology in its Trusted Traveler Programs to allow preͲscreened travelers expedited processing at designated ports of .Radio frequency identification is a form of automatic identification and data capture technology that uses radio frequencies to transmit information. The flexibility and portability of radio frequency identification technology has introduced new security risks to agency systems, such as cloning of an identification tag and the security of the database that stores personal data. Without effective security controls and procedures over this technology and its supporting infrastructure, unauthorized individuals could modify identification tag content or access sensitive data stored in the system databases.