"Can we talk about how horrible it is to travel while being transgender sometimes?" Montoya asked in the now-viral video, which has been seen by at least 18 million people at the time of this reporting. "I always have immense anxiety leading up to going through security. And this means that I totally recognize the privilege of having all of my documents correct. So, the gender marker on my license, for example, says 'female.'"Pardon me if I get your pronouns wrong, but the TSA isn't transphobic; they're bomb-phobic.
"But, going through the scanner, there's a male scanner and a female scanner in the TSA checkpoint," Montoya continued. "And, looking at me, you know, I look like a woman and I am a woman. So, that's great. I love having systemic privilege when I feel unsafe, which is in an airport. But, going through the scanner, I always have an 'anomaly' between my legs that sets off the alarm.
He/she/xe/xshe (whatever) tells the sad story about always having the anomaly between his legs if he goes through the scanners as a woman and has an anomaly in his chest if he goes through as a man. Apparently he was committed enough to get breast implants, so augmented, but not committed enough to get subtracted from.
The story is also covered at PJ Media, who got in contact with TSA and reprints much of the way they address the situation.
I have a simpler example. Back two days before New Years Day of Y2K, Mrs. Graybeard and I were hit by a pickup truck while riding our bikes. She had several stainless rods inserted in her back; we call it a pound but don't really know what it weighed. As a result, she was given a card by her doctor to hand to the TSA. It states she has implants that will show up on their scanners. We've taken at least a dozen trips in the intervening years and Every Single Time she goes through the scanners, they stop her for more thorough investigation. Every Single Time we've asked the TSA about the cards they say (in effect) "nice cards, but we have to be sure." Essentially, anyone could print up cards like that.
And that's what's going on with Rosalynne Montoya. Anybody could say they're a trans woman and have a pound of explosives between their legs. Once the anomaly shows up, they have to prove it's safe. They're responding to the risk, not the person.