CBS News' Weekend Roundup, 7/13

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Saturday, July 13th
Labor Secretary Alexander Acosta has resigned amid the Jeffrey Epstein controversy. R&B singer R. Kelly faces new sex crime charges, and Tropical Storm Barry is making its way towards Louisiana. Plus -- a preview of "One Giant Leap Revisited," the CBS News Radio special commemorating the 50th anniversary of Apollo 11. Correspondent Steve Dorsey will have these stories and more on the CBS News Weekend Roundup.