norah: hundreds of thousands are without power tonight as a massive storm brings life-threatening conditions and at least a dozen reported tornadoes. the reason for the defense secretary s mystery hospitalization is revealed. complications from his prostate cancer treatment. why the president didn t know the reason until today. discussions about screening, treatment, and support are deeply personal and private ones. norah: a federal panel here s trump s claim of immunity but the judges sound skeptical. what it all means. a president has to have immunity. and the other thing is i did nothing wrong. the investigation into that alaska airlines 737 max that lost a door panel is honing in on bolts. norah: and the new concern tonight about bottled water and your health. what you should know. good evening to our viewers in the west. i m norah o donnell, and thank you for being with us on this tuesday night. we want to begin tonight with a story that is impacting just