Meet the State Dept. Science Envoy Who Spelled Out “Impeach” in His Resignation Letter to Trump; Science Envoy who Resigned in Protest of Trump: Climate Change Makes Storms like Harvey More Severe; Despite Protest from Johnson & Johnson, Florida Executes Man Using Untested Drug Cocktail; New DNA Evidence Cited As Missouri Governor Stays Execution of Prisoner Marcellus Williams; This is Transparent Discrimination: ACLU’s Chase Strangio on Trump’s Military Trans Ban.