NPR News Now covers AI industry leaders supporting Anthropic CEO Dario Amodei’s call for slowing frontier development to ensure safety, alongside House Speaker Mike Johnson’s defense of President Trump’s $5,000 stimulus checks. The broadcast also reports on Republican Wisconsin gubernatorial candidate Tom Tiffany surviving an emergency water landing, Celine Dion’s emotional return to the stage in Paris, and "Practical Magic 2" topping the box office.