I read this incident. Apparently, they showed up at his home with four marshalls and two local deputies. They took his firearm (which belongs to the TSA anyway), but they also took his California permit to carry, which was not granted by the TSA, or related to the TSA in any way.
With this in mind, remember that just this past month a teenager snuck into an Airport.
He approached an aircraft (Boeing 737) and climbed into the wheel well unnoticed. He died because of that.
With this in mind, an Iranian-American forgot that he had his Glock in his laptop case when he went to the airport. His firearm went through the security scanner. He was allowed to take the firearm with him onto the airplane and realized that he had it when he arrived at his hotel.
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The TSA has implemented these scanners. This has taken well over a year of planning. Let's look at what WASN'T done in the meantime.
They haven't done anything about the fact that 75% of firearms that pass through the X-Ray scanner get through.
They haven't done anything about the fact that you can just walk onto the Tarmac and plant a bomb on the aircraft.
And they just recently (after the scanners to scan US travelers were implemented) started screening passengers on US bound international flights against the terrorist watch lists.
TSA takes full control of passenger watch list checks | ATW Online
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You want proof that this is security theater?
This project was ahead of screening passengers on US bound international flights against the terrorist watch lists.
How is that possible? Who in their right minds would think that was a priority.