From the Wall Street Journal:
Exodus in Past Decade Was the Largest Since the 1950s
But, hey, Puerto Rico is essential to America's national interest because it's an ideal place for Microsoft to evade federal taxes. And it would be strategic location for a naval base for America's Great White Fleet
to protect the proposed Isthmusian Canal from the Kaiser's weltpolitik
and King Edward's new dreadnoughts.
We are frequently assured that we don't need to strengthen defenses against illegal immigration since nobody in Latin America will ever want to move to America again. Yet, here we are coming up on the 100th anniversary of open borders with Puerto Rico, and they just don't stop coming.