“TSA has strict requirements that all vendors must meet for security effectiveness and efficiency.  Due to its inability to deploy non-imaging Automated Target Recognition (ATR) software by the Congressionally-mandated June 2013 deadline, TSA has terminated its contract with Rapiscan. 

“By June 2013 travelers will only see machines which have ATR that allow for faster throughput.  This means faster lanes for the traveler and enhanced security.  As always, use of this technology is optional.”