WASHINGTON -- America, the only developed nation that shares a long -- 2,000-mile -- border with a Third World nation, could seal that border. East Germany showed how: walls, barbed wire, machine gun-toting border guards in towers, mine fields, large irritable dogs. And we have modern technologies that East Germany never had -- sophisticated sensors, unmanned surveillance drones, etc.
It is a melancholy fact that many of these may have to be employed along the U.S.-Mexican border. The alternatives are dangerous and disagreeable conditions for Americans residing near the border, and vigilantism. It is, however, important that Americans feel melancholy about taking such measures to frustrate immigration that usually is an entrepreneurial act -- taking risks to get to America to do work most Americans spurn. As debate about immigration policy boils, augmented border control must not be the entire agenda, lest other thorny problems be ignored, and lest America turn a scowling face to the south and, to some extent, to many immigrants already here.
But control belongs at the top of the agenda, for four reasons. First, control of borders is an essential attribute of sovereignty. Second, current conditions along the border mock the rule of law. Third, large rallies by immigrants, many of them here illegally, protesting more stringent control of immigration reveal that many immigrants have, alas, assimilated: They have acquired the entitlement mentality spawned by America's welfare state, asserting an entitlement to exemption from the laws of the society they invited themselves into. Fourth, giving Americans a sense that borders are controlled is a prerequisite for calm consideration of what policy that control should serve.
Of the estimated at least 11 million illegal immigrants -- a cohort larger than the combined populations of 12 states -- 60 percent have been here at least five years. Most have roots in their communities. Their children born here are U.S. citizens. We are not going to take the draconian police measures necessary to deport 11 million people. They would fill 200,000 buses in a caravan stretching bumper-to-bumper from San Diego to Alaska -- where, by the way, 26,000 Latinos live. And there are no plausible incentives to get the 11 million to board the buses.