Original sentence: " The 9/11 Commission later released a summary of Bush closed-door testimony, which stated the President's "instinct was to project calm, not to have the country see an excited reaction at a moment of crisis".It went on to say "The President felt he should project strength and calm until he could better understand what was happening.One occasion was on the moment of the September 11th World Trade Center attacks: after being told by Chief of Staff Andrew Card that the U.was "under attack", Bush remained seated for an additional seven minutes, while elementary school children in Florida read "The Pet Goat"
Edited sentence: One occasion was on the moment of the September 11th World Trade Center attacks: while a reading of "The Pet Goat" to elementary schoolchildren in Florida, after being told by Chief of Staff Andrew Card that the U.was "under attack", Bush was in a state of utter immobility that lasted seven minutes