On the morning of September 11, 2001, the Inside Edition morning meeting was underway, when the world changed forever. Inside Edition’s Matt Meagher was one of the first reporters on scene as hundreds of people fled the collapsing towers. Cameraman Steve Shapiro found himself in the midst of the chaos, as day turned to night. The devastating scenes he filmed that day seem almost apocalyptic. Twenty years later, they remain unforgettable moments from one of America's most tragic days.