An interesting opinion piece, introducing a demographic angle to the immigration debate I have not seen argued elsewhere. The sourcing on the statistics seem credible.

The conclusion does not seem unescapable; many events could change the situation. If neo-con attempts to prohibit birth control succeed in either country, then what? The desirable potential for improved quality of life from lower birth rates is ignored in favor of an economic worry about a shortage of cheap labor. The story seems a bit shallow.

While I won't argue with the World Bank figures, I'm not as convinced Mr. Dunn has carefully examined all the data that bears on this situation. For example, Trinidad and Tobago are experiencing steep population declines. By his argument, they should therefore be seeing a rise in wages and in the standard of living. If they are, I have not heard of it. As a result, their people remain eager to improve their living standards by emigration. Without being able to prove this part of his argument, the piece stands as a very forceful argument for a flawed theory.

Excellent points. Refreshing, unique perspective. The author looks at a trend based on current assumptions but could be a little more clear that, of course, if the trends change for some reason, the outcome will be different. I wonder how it will affect all those ex-pat Americans who have moved south?

Demographics are the key to understanding the world societal changes coming...a well done article with good information.

This is good journalism, because it considers an aspect to a major public debate that most people will not have considered: the recent changes in Mexico itself that may vitiate our usual extrapolation of present events along the border. Whether or not you agree, it's an interesting and provocative piece.

A little over the top accusing individuals of being xenophobes. Some of their opinions or ideas have merit regards to border security. The story is otherwise informative and well written.