Passing through the TSA security checkpoint earlier this afternoon, TSA personnel insisted on sending my Birks through the X-ray machine. When I refused, I was told I'd be singled out for additional screening. After passing through the metal detector without setting off any alarms, a second TSA officer wanted to check my shoes. I said they were 'Birks, standard issue' & never set off the detector. He said, 'We're not checking for metal. We have a new profile. That's all I can say.' I passed, so I guess Birks aren't the new, hush-hush, profile?