Authors:

This is a big world. Billions - rapidly increasing billions - of people live outside our borders. Obviously, a great number of them, being much poorer than they think most of us are, look enviously over those borders and would like, if they could, to come here.

This is a big world. Billions - rapidly increasing billions - of people live outside our borders. Obviously, a great number of them, being much poorer than they think most of us are, look enviously over those borders