 It's how we're using them and how often we're using them. Policing screen time for kids this summer. I'm Matt Koufax. A local man wants answers after his dog dies at a PetSmart. This is Kyle Cooper. Who wants to be a millionaire reaches a major milestone? We'll hear about that from TV Guide's Matt Rausch. One o'clock. This is CBS News on the Hour, sponsored by O'Reilly Auto Parts.