Show me your papers: Governor abbott set to sign into law a measure requiring Texas police to enforce federal immigration law, we’ll explore. Also murder charges mulled for the North Texas police officer who fired the shots killing 15 year old Jordan Edwards. Some wonder why it seems so few officers suspected of such crime ever wind up doing time. We’ll explore. Plus one of Texas’ best known investors buys one of the world’s best known social media platforms. But does Mark Cuban really want Twitter, or something smarter? All of that and a whole lot more today on the Texas Standard: