I think the "20-50 sceonds to everyone's flight schedule" is a litlle optimistic--maybe by three orders of magnitude. Of course, the last time I got printed was in the late '60s. That took a day. Of course, it also involved an overnight stay courtesy of the state, a very dry sandwich and some water. They were very nice about it all. I'm sure the customs/immigration people will be, too. If you're worried, just wear thick gloves and hope no one notices.

The US has a right to establish its own rules regarding people entering the country. Them's the facts, Jack. Will it be printing its own citizens when they return from abroad? That could get a little contentious for some people. And will search and seizure laws apply if they are checking a terrorist suspect and by accident discover a bank robber? Miranda law? Looks like a big can of worms, but hey, it ain't my country. All the best.