WASHINGTON (AP) — If your cellphone was on at 2:20 p.m. Eastern time you should have heard a loud noise and seen a message flash across your screen. That’s when the U.S. government on Wednesday conducted its once-every-three-years nationwide test of the emergency alert system. Alerts also went out on radio and television. The cellphone alerts went off at the White House during press secretary Karine Jean-Pierre’s briefing. Ahead of the test, organizations that work with abuse survivors who have secret phones recommended they turn them off so as to not have the blaring noise tip off their abusers. The last nationwide test was Aug. 11, 2021.