I just flew back from the States and wanted to share a new (to me) process at the airport.
Persons with US passports can now go through the electronic gates at the airport. This means no more waiting in the always long lines of the past. I sailed through the gate with virtually no wait!
So, as long as your passport has the electronic strip on the bottom of your main passport page, go through the first gates you come to and use the scanners instead of joining the huge crowd in the further section of passport control. Yay!