Sheriff Mark Lamb

If they find out you don't pay them, you could end up dead in the desert.

And so most people will not take the risk.

Every now and then, you might find somebody, which are very, very few and far between, who did not pay the cartels some money to come across.

How would they...

How would they know though?

Because as soon as they get into the border state of the countries and the cartels know who, they watch the airports when they land on the plane, these planes at the airports in Mexico, they know these large groups coming up.

You only have to shoot one or two people in front of a large group of people before they'll all get in line and say, yep, I'll pay you or I'm gonna make sure that you get your money.

The cartels have plenty of people.

They have an army of people to ensure that you are not crossing the border unless you've paid the cartels.

So the cartels control the flow of people into this country.

But they're not actually smuggling.

Are they actually smuggling people in?

They have smugglers.

They have smugglers at work that will get them right up to the fence.

I was flying our helicopter just two weeks ago, three weeks ago.

And we were flying along, which, by the way, we went from the reservation to Nogales, which is probably...

100 and something miles, maybe more, 200 miles, we didn't see a single Border Patrol agent in that time.

No MSC trucks, which are your radar, they've got the sonar systems and stuff.

We didn't see any of those.

No Border Patrol agents.