The U.S. is not able to protect its own borders, because its ruling elites are very incompetent. So they try to pass laws like the one being considered in the 112th Congress right now, which is authored by Republican Rep. Lamar Smith of Texas.
The bill would send convicted persons to indefinite jail terms. They are saying "Screw The Constitution." Ah! The benefits of the "American Dream!"
Some of the escoria (scum in English) who are coming to the United States illegally in rafts from Cuba are criminal elements. Cuba will not take them back. They would have to be incredibly stupid to do that.