"The Transportation Security Administration (TSA) is implementing a search capability to enable authorized users to search or discover1data held by separate databases within TSA. The search function will be known as the Enterprise Search Portal (ESP). TSA is conducting this Privacy Impact Assessment to assess privacy impacts associated with this capability to search across multiple databases. The systems being searched are covered by other PIAs or are otherwise compliant with the E-Government Act of 2002."
Department of Homeland Security: http://www.dhs.gov/