I'm sitting on a park bench in New York City, overlooking 42nd Street just east of Grand Central Station, waiting for the bus that will take me home from a lovely girlfriend getaway in Manhattan. Right now it's an unseasonable 62 degrees and sunny; yesterday it was windy, rainy, and just above freezing temps. Kids are playing in a nearby playground. Folks are out in t-shirts and sunglasses walking dogs. Colleagues in suits are lunching on nearby benches. Everyone seems relaxed, smiling, happy to be outside on a Wednesday in February. Like we're all sneaking one past Mother Nature; even the birds are snickering. Everything is fine and beautiful. Then I pick up my iPhone, check Instagram -- which is usually a fairly neutral, politics-free social media space -- and I see posts about high school students walking out of class in protest, Elizabeth Warren voted into silence on the Senate floor, President Trump talking about terror attacks in Sweden that never actually happened,...