At Otay Mesa Detention Center in San Diego, authorities have shut down an underground channel that detainees used to communicate with the outside world. Reporter: Aisha Wallace-Palomares, LA Taco At a contentious Senate hearing on Capitol Hill Tuesday, Homeland Security Secretary Kristi Noem defended the Trump administration’s immigration policies. In Southern California, ICE has released a Cambodian genocide survivor from immigration detention following a court order. Learn more about your ad choices. Visit megaphone.fm/adchoices