Texas Standard for August 31, 2015

After the execution-style shooting of a deputy, Harris County’s sheriff blames a rhetoric that he says is out of control. Is he right? Also: When it comes to Texas v. the EPA, what are Texans getting for their money? Plus: Robots! They’re here to take your job. Or are they? We’ll compare science fiction versus fact. And: The search for the fountain of youth — Aging and the ‘Audacity of Hops.’ No matter where you are, it’s Texas Standard Time.