required reauthorization process that was due on decemb s ese stores can take steps to update their stace funding is restored." >> woodruff: stay wi us, coming up on the newshour: a new government report details family separations a border. an historic trip crossing the antarctic continent. burden trey oliver gives his brief t spectacular take on life at a jail in mobile, alabama. but first, these past couple of years have been a kind of turning point for public attitudes about some tech and social media giants. 's led some to ask broader questions about monopolies, power and competition. at his confirmation hearing this week, william barr, the nominee for attorney general, told but, he said, "a lot of people atnder how such huge behemoths ow exist in silicon valley have taken shape under the nose of the antitrust enforcers." that's part of the focus of tonight's report from economics ndent paul solman, for e.r regular feature, "making se >> reporter: you want to do what to facebook? >>reak them up. >> reporter: break up the company and thus the fk monopoly law professor tim wu was saying