NEW You can now listen to Fox News articles! The president and first lady had just sat down on the dais at the White House Correspondents' Association Dinner on Saturday. The color guard had left the room after "Hail to the Chief" and the national anthem, and now we all took our seats and started the first course. There was an upbeat mood in the large ballroom for the annual White House Correspondents' Association Dinner. At a front table near the dais, I was seated next to Homeland Security Secretary Markwayne Mullin on one side and Fox News CEO Suzanne Scott on the other. My wife, Amy, was two seats away next to the secretary’s wife. We had just passed the breadbasket around the table while making small talk when the sound of four distinct pops rang out in the distance, and the room seemed to freeze. WORLD LEADERS CONDEMN ‘UNACCEPTABLE’ VIOLENCE AFTER ARMED ATTACK DISRUPTS WH CORRESPONDENTS’ DINNER Seconds later, U.S.…