News and culture through the lens of Southern California.
Hosted by A Martínez
Airs Weekdays 9 to 10 a.m.

A new tunnel discovered for smuggling people across the border from Mexico




In this undated photo provided by the United States Drug Enforcement Administration, shows the tunnel shaft entrance on the U.S. side of a 240-yard, complete and fully operational drug smuggling tunnel that ran from a small business in Arizona to an ice plant on the Mexico side of the border, Thursday, July 12, 2012, in San Luis, Ariz.
In this undated photo provided by the United States Drug Enforcement Administration, shows the tunnel shaft entrance on the U.S. side of a 240-yard, complete and fully operational drug smuggling tunnel that ran from a small business in Arizona to an ice plant on the Mexico side of the border, Thursday, July 12, 2012, in San Luis, Ariz.
AP Photo/Drug Enforcement Administration

For decades now, we've heard about tunnels, used to smuggle drugs - and sometimes people- underneath the US-Mexico border.

Just this past weekend, 30 people were detained in San Diego. Authorities suspect they had been smuggled through a tunnel.

Border and Customs Protection is still investigating.

But here's the twist. 

Most of them were Chinese Nationals.

Mike Unzueta is a retired special agent for Homeland Security, in charge of Immigration and Customs Enforcement investigations.

He's now a consultant with Frontier Solutions, a crisis management firm.

And he knows his smuggling tunnels. He spoke with Take Two's A Martinez.