sharyl: gil kerlikowske is the current commissioner of customs and border protection. there is a lot of concern among law enforcement. they know that most people who cross the border will not be terrorists, but they don't even want one to slip through and they feel like it's hard to get a grip on all that? gil kerlikowske: well, i think the terrorism issue is, particularly after the attacks in paris, uh, the continuing war in syria and the number of people, millions of people, that have been displaced, uh, compared to what's going on in europe, our issues are significantly fewer or less than that. but is there the potential then for somebody to enter the country or try to enter the country? that's always a concern to us and we have to be aware of it. sharyl: that point is punctuated by customs and border protection alarid waves through a white minivan carrying 18 illegal aliens. his cut for that one load, $36,000, close to his annual salary. a search of his home turned up $175,000 in cash. in an alarming taped confession, alarid admits helping smuggle in a hundred unkn