On May 4, 2021, the Ninth Circuit reversed the district court’s judgment for Snap, Inc., owner of the mobile application Snapchat, in a case brought by the parents of two teenage boys tragically killed in a car accident. The parents claimed that Snap, Inc. caused the death of their sons through its negligent design of Snapchat. They claimed that that their sons were encouraged to drive at dangerously high speeds by a Snapchat filter which purports to show the user’s real-time speed (the “Speed Filter”). The boys in this case drove at speeds reaching 123 miles per hour and eventually fatally crashed into a tree going approximately 113 miles per hour. Shortly before the accident one of the boys opened Snapchat to use the Speed Filter, believing that posting a video of them traveling over 100 m.p.h could result in rewards within the app. See Lemmon v Snap, Inc. (9th Cir. May 4, 2021).  Snap claimed immunity under federal law.