Federal and state lawmakers unveiled legislation drafted in response to the Evergreen High School shooting on Monday, aiming to require social media companies to respond more quickly when investigators are checking out potential warning signs in online posts. U.S. Rep. Brittany Pettersen unveiled a federal bill that would require social media companies to respond to warrants within three days, versus the 35 days it can take now. She said response delays were a “devastating and glaring policy failure” that contributed to the shooting in Evergreen in September. State Rep. Tammy Story, an Evergreen Democrat, said she planned to introduce similar...