We speak with Oscar-winning filmmaker Errol Morris about his new documentary, Separated, based on NBC correspondent Jacob Soboroff’s book of the same name. The film details the horrors of the Trump “zero tolerance” immigration policy, under which thousands of immigrant children were forcibly separated from their parents after they crossed the southern U.S. border, part of the administration’s broader crackdown on immigration. The cruel policy was enforced as early as July 2017, initially without public acknowledgment by Trump officials. It was ultimately rescinded amid widespread outrage, but it continues to impact the families who were targeted, and about 1,000 children remain effectively orphaned years later, with authorities and rights groups still unable to locate their parents. “It wouldn’t have happened were it not for decades of bipartisan deterrence-based immigration policy that continues to this day,” says Soboroff. Morris says “the most appalling part of the policy” was the lack of record-keeping. “OK, let’s separate the children, but let’s not actually keep a record of how to ever reunite them. Let’s separate them for good. Let’s just create orphans, abandon children,” he says. Separated plays for a week at the IFC Center in New York, starting tonight, before it gets wider theatrical distribution and airs on MSNBC this December.