The US government on Friday issued a new policy memo tightening rules for foreign nationals on temporary visas seeking permanent residency, stating that persons wanting a Green Card must return to their home country to apply, except in "extraordinary circumstances".
Immigrants' contribution to the US economy is disproportionate to their share of the population, meaning that losing them would shrink the economy even more than losing a random group of Americans, points out Sree Sreenivasan.
