An Associated Press investigation found 268 instances in which people breached the perimeter of 31 of the nation's busiest airports between January 2004 and January 2015.
Airport screening procedures to stop the spread of infectious diseases miss half to three-quarters of infected travelers who make it to their destinations.
A man was charged with using a laser pointer that injured three pilots from two different aircraft: two police officers flying in a helicopter and the co-pilot of a commercial Air Canada flight that was leaving LaGuardia Airport.
For the fourth time in less than a year, Mineta San Jose International Airport suffered a security breach after a man got inside the airport's perimeter fence before a guard detained him.