An emotionally disturbed man allegedly climbed a six-foot security fence to enter a Newark port and boarded a cargo ship. He was found hours later asleep in the captain's cabin. 

An unsecured gate guarding the New York airport's fuel pipeline was not under video surveillance for an unknown amount of time. 

After his jet ski sank in Jamaica Bay, Daniel Casillo swam three miles to the airport, seemingly effortlessly bypassing the million dollar security system around the international airport. 

The Portsmouth Naval Shipyard is getting a state-of-the-art security gate to blend into the environs and control inbound and outbound traffic to the high-security facility.

The Energy Department is replacing guards and supervisors on duty last week when three peace activists breached perimeter fences at the "Fort Knox of uranium."

While perimeter security is largely left up to individual airports, Brian Hedglin's attempted hijacking of a SkyWest plane brings the issue to light.