I've also gone through this process, it did take about 30 minutes in my case. That also included waiting for a TSA agent to be available to even start the process. So YMMV, perhaps based on how busy the airport is at the time.
They had me answer a series of questions about past addresses etc, it wasn't just an extra pat down in my case. After answering all the questions correctly they allowed me to continue.
They had me answer a series of questions about past addresses etc, it wasn't just an extra pat down in my case. After answering all the questions correctly they allowed me to continue.