Is It Possible to Secure the Border?

ABC News -- A immigration reform bill set to be unveiled in the Senate next week will require the federal government meet certain border security benchmarks before moving forward with another part of the legislation -- a pathway to citizenship for undocumented immigrants.

The benchmarks: an operational border security plan, a completed border fence, a national employment verification system and a way to better track exits at airports and seaports.

The border security plan will need to accomplish two things, specifically: Border Patrol will need to have 100 percent surveillance of the border and demonstrate 90 percent effectiveness in catching people who are crossing illegally into the U.S.

To find out whether those goals are realistic, I spoke with David Shirk, a political science professor at the University of San Diego who testified about the border at a Senate committee hearing last month. (Full Story