of ‘the law of nations’
http://thehill.com/blogs/pundits-blog/immigration/333368-the-constitution-does-indeed-permit-immigration-caps-as-the
"...the clause in the Constitution giving Congress “Power … To define and punish … Offenses against the Law of Nations.”
“The law of nations” was the usual 18th-century term for international law. It included standards of conduct among nations. But it also encompassed some rules within national boundaries. A power to “define and punish” an “offense against the law of nations” included protecting foreign ambassadors against interference, protecting safe-conduct passes — and restricting immigration."...
"This should teach us two civic lessons. First, the Constitution did grant the federal government authority over immigration. Second, to understand the Constitution you have to do more than read the document. Because it was written mostly by lawyers for an 18th-century public well educated in legal matters, to fully understand the Constitution we have to know some fundamentals of 18th-century law."
Edited by JeffB at 14:23:44 on 08/07/17