November 23, 2012
For years, the Homeland Security Department has said its beefed up enforcement at the Mexican border has led to fewer illegal crossings. But now a new study commissioned by the agency is questioning that.
Researches with the National Academy of Science tried to determine not how many people cross the border and are caught but the number of people who actually try to cross the border.
Some illegal immigrants give up. Others try multiple times. Still others make it. It’s useful to think about it like a website. You can measure the number of hits every day but if the same people keep coming back, you don’t really have a sense of your traffic. What you really want is the raw number of just how many unique individuals came that day.