Good grief! What makes America unique is the way we at least claim to treat people equally (actuality being something else) - why would we want to go through the complex nation by nation solution suggested here?? And using the order of the constitutional sentence to determine its relative importance is just silly - why can't the words be in ascending as well as descending order. Don't know where this publication is coming from, but it's not particularly useful or intelligent.

Yes it is. It looked at immigration a whole different way and even turned things around, illustrating how U.S. Citizens going abroad don't get the plush treatment abroad that foreigners get in the U.S. Then too it cited the Commerce Clause of the U.S. Constitution, Article I, Section 8, Clause 3 and showed how Congress is to be harder on foreigners than on U.S. Citizens and should hold them to the same or greater standards. Great.