Q&A: Who's policing Texas' local immigration enforcement program?

On this edition of "Inside the Investigation" – an extended discussion first featured in the latest episode of our weekly investigative program, "Cause & Effect" – KXAN's Grace Reader and Arezow Doost examine how local Texas police are taking on federal immigration enforcement duties through ICE's rapidly expanding 287(g) program – and who is enforcing the state rules requiring some agencies to join that partnership.