It had been a year since I last flew, so maybe it’s just new to me.
Went through the zigzag line until we were lined up 3 across .
Then had to walk across an empty area of about 30 ft., staying lined up with each other. Just three at a time. Then handed our Real ID to the TSA agent and sent off to be screened. Shoes stayed on and everything stayed in the bag
As best I could tell it was being done at only the one screening point.
This at SEA.
This happening elsewhere? It seemed more efficient than the “traditional” method.