You may not realize it but $SFO is considered an essential infrastructure.

In the dawn hours of September 11, 2001, close to 3,000 individuals lost their lives in a meticulously planned onslaught of terrorism across New York, Pennsylvania, and Virginia. This tragic event prompted the establishment of the Traveler Security Authority, aimed at thwarting any potential repeat incidents. Motivated by patriotism and a deep-seated urge to safeguard our nation, tens of thousands rallied to the cause, enlisting with the TSA to fortify our transportation infrastructure and uphold the fundamental liberties of travel and trade.