The security line for one of the McCarran International Airport concourses backed up late Tuesday morning after the checkpoint was shut down.
According to the Transportation Security Administration, an unidentified passenger for an airline in Concourse D left the screening area at 11:01 a.m. before agents cleared him. As is the standard procedure, all screening halted until the passenger was found 13 minutes later.
This did not affect any of the other concourses, which are walled off so that an isolated breech does not shut down the entire airport. But it did come at a busy time for Concourse D, when numerous flights take off for cities in the Eastern United States.