Well, because we're talking here about people who've been ordered deported and the administration has done nothing about actually making sure that they go home. This is theater, I think, for two audiences - one probably for the American public to some degree, to make it seem as though the administration is taking this renewed surge of Central Americans seriously.

But the other audience, I think, is people in Central America because since last summer, they've been running ads down there - the United States government has - don't come, it's dangerous. You will be immediately deported. That's literally what it says in Spanish.

Well, enforcement theater is OK if it's reality theater. In other words, obviously, you want to make it clear, you want to make people see that the law is being enforced.

But the question is - are we deporting a couple hundred people for show or are we actually making a serious effort to remove everybody who's got a final order of removal? When I say enforcement theater, what I mean is a kind of pretend enforcement.

The interesting point is that the polarization is not so much among the public, although there's some of that. The polarization on the immigration issue is really between the elites and the public. In other words, this is not so much a right-left issue, which it is partly.

But it's more an up-versus-down issue because the research has shown that opinion leaders, whether they're elected officials, journalists, business leaders - it's academics, religious leaders - they have dramatically different views on immigration. A

The effects of illegal immigration aren't that different from those of legal immigration —an illiterate Central American farmer with a green card is just as unsuited for a 21st-century economy as an illiterate Central American farmer without a green card.