This summer, in a project designed by ProPublica, 10 news organizations are sharing information to flesh out the hidden details of families separated by the Trump administration’s zero tolerance immigration policy. Bob speaks with Selymar Colón, digital managing editor at Univision News, one of the organizations involved in the collaboration, about how the consortium has investigated and reported on some of the 200 tips it has received —and about the four families that were reunited after their stories were published.