President Obama’s aid for Western states hurt by drought shows the limits of what can be done without… rain. His main point, buried in his plan, is to look forward to continued climate change and prepare communities and industries to be “resilient” in the face of new conditions. Plus, the latest digital area of intense competition is messaging apps, which provide wide-ranging communication services that will challenge not only instant messaging, but also companies like Skype. Later, Pandora uses what it knows about our musical taste to lure political advertisers. The promise and the peril. And finally: The debut of the second season of the smash hit House of Cards doesn’t just mark the success of Netflix – it’s also an indicator of the enormous changes wrought in the televisual entertainment business.