Security breach at major U.S. airport causes concerns

SAN DIEGO, Calif. -- A security breach at a major U.S. airport is causing concerns.

Police said a man who was recently released from jail and was on parole managed to board a plane in San Diego.

The man was able to get in a line of passengers and walk onto the plane. The breach wasn't discovered until the flight crews realized they had more people on board than what should have been.

Police took the man into custody. He has an extensive criminal history. So far, he has only been charged with trespassing.