We're all familiar with the thorough TSA security screenings inside the airport, but TSA actually starts checking each passenger even before flight day.

Homeland Security Secretary Kristi Noem announced on Saturday a new $1 billion investment in TSA security checkpoints at airports across the United States.

SFO is the first airport in California to implement the technology, after Clear tested it at Hartsfield-Jackson Atlanta International Airport, Ronald Reagan Washington National Airport and Seattle-Tacoma International Airport. Airport spokesperson Doug Yakel told SFGATE the eGates are live at Harvey Milk Terminal 1.

Will Rogers World Airport leaders say new equipment and expanded screening options should help ease congestion starting Wednesday.

“During Monday morning security screening in Terminal A, a TSA officer detected a firearm in the 29-year-old male’s carry-on bag. TSA officers immediately alerted Massachusetts State Police (MSP) who confirmed there was an unloaded 9mm firearm in the bag,” the release says.

It was a shocking moment last week at Portland International Airport when a person passed through security with a meat cleaver in their carry-on bag.

A Pittsfield man is in jail after police say he threatened to kill employees at Manchester-Boston Regional Airport.Court documents state the incident happened Thursday around 4 p.m. Londonderry police officers stationed at the airport say Transportation Security Administration agents reported that a man went through security three times.

Travelers who don’t have a REAL ID or passport can still pass through airport TSA checkpoints this holiday season, but they might be required to pay $18 if a new proposal goes into effect, the agency said this week.