USA, CA, Sacramento International Airport, 7:10 p.m.: Boarding areas of Terminal A were evacuated after an arriving passenger exited the terminal and then for some reason headed back to the aircraft without going through security. The passenger was detained by sheriffs deputies and then released
.
People waiting for lights were directed to the ground floor of the terminal and told to go through security again.

Airport officials estimated that 4,200 to 4,500 departing or arriving passengers were delayed. At 8:40 p.m., rescreening began in order of departing flights. At 10 p.m., 700 to 900 passengers were still waiting to be rescreened.

Approximately 30 outbound and 10 inbound flights from Southwest, America West and Delta airlines were affected.

February 15th. (Saturday)

USA, Florida, West Palm Beach International Airport, 9:45 a.m.: A man rushing to catch the morning Delta Flight 1572 to San Diego ran past metal detectors, prompting the evacuation of the entire concourse C and the plane he attempted to board. Airport security searched the empty concourse and Delta plane with bomb-sniffing dogs and declared it safe within the hour.
After questioning him for hours, Palm Beach County sheriff's deputies gave the computer programmer a notice to appear in court on a misdemeanor charge of breaching airport security.
Fifteen flights were delayed and thousands of passengers waited in lines that stretched at least 300 yards so they could be rescreened by security before being allowed back inside the boarding area for Delta, AirTran, JetBlue, American, United, Comair and Air Canada.

USA, CA, Oakland International Airport, 4 p.m.: After passengers and security screeners near a security checkpoint smelled something unusual that caused them to cough and having trouble breathing the terminal was partially evacuated for an hour.
No one needed medical attention, and most portions of the terminal remained open. It is believed that pepper spray may have been released, but authorities were unable to identify the substance or its origin.

No flights were substantially delayed.