Well explained in terms of technicality
[QUOTE=JPF; 1487915]I think you guys are missing the point. Our current security situation puts fighting terrorism as the very highest priority and far above convenience at border crossings, privacy, etc. So they reward people who are willing to provide extra background information with the shortest wait (SENTRI). Next come people who have documentation with a computer chip inside so that they can more easily be checked against databases (Ready Lane). Everyone else is lumped together because they need more scrutiny.
I don't agree with it but that's the reality of the situation.[/QUOTE]However I think the discussion was about weather a US born citizen should get preferential treatment over others (foreigners and naturalized US citizens like Arnold Schwarzenegger) at the US customs. The technical part of it is a well published and well known policy for years since 911.