We need one of those at the border. We’re simply not being invaded quick enough.
Actually it could be a very good ide, absent graft (ROTFLMAO!). The Brits have something like it in London that works very well with Gatwick and Heathrow. For Gatwick you get on a nonstop train at Victoria Station and go directly to the airport. Then you go directly to security and thence, via people mover, to your terminal. It could be made really good by putting security at the three outlying stations and restricting certain cars to screened passengers only.