?? I miss your point. I did not say my sister had anything to do with NoS. I said she toddled through (barely, sometimes it takes multiple tries without her cane) the WTMD. She did not alarm but she was taken for a frisk. I have only been to SAT once myself, long ago and don't remember any particulars. They didn't mention if the NoS was at that checkpoint or not. They went where they were directed, she did what she tries to do - get out of the wheelchair, use her cane up to the very edge of WTMD, abandon cane and try to get through without touching the sides of the WTMD. Sometimes it takes a couple tries, sometimes it doesn't work at all, sometimes she's not up to getting out of the wheelchair at all.

Perhaps you have silent alarms at the WTMD. She was surprised, flustered, wasn't asked if she had something in her pockets, no suggestion to back up and try again, just off for a patdown.