[FreeReign]

Does this get built in the middle of the Rio Grande, on their side or our side?

Neither. The river is assumed to be a natural barrier.

[LesbianThespianGymnasticMidget]

It is not. When I was in Brownsville you could look from the Intl bridge down the river and dozens op people were clinging to inner tubes making the crossing. Maybe there is a solution though. Alligators.