If we have a free trade or automatic visa agreement with a nation, you are basically saying we want free trade between us and that nation however, I believe that free travel is also part of that equation. Without free travel you really don't have free trade as you are still limiting some forms of economic activity. By eliminating visa requirements you would essentially turn the passports for each other's nation into virtual green cards for one another, basically what the EU has done between its own member states. This means that companies in the other nation can now hire the best talent from the US and vice-versa as well as expand. Also, most of those nations are wealthy and the EU has proven mass migration won't happen as people will generally will generally stay where they are.



