Originally Posted by Obi Wan Russell
and as you pointed out Storming Heaven exposed the US weakspot with regards to the use of Airliners as weapons (though not in the same way as 9/11).
With due respect, there is also Tom Clancy's
Debt of Honor (1994), written in the same year, which contains in it's final chapters;
Originally Posted by wiki
With the crisis over, President Durling nominates Ryan as vice-president during a joint session of Congress. However, an embittered Japan Air Lines pilot—driven mad by the deaths of his son and brother during the previous conflict—flies his Boeing 747 directly into the U.S. Capitol.
Nearly the entire presidential line of succession is eliminated; Ryan, who had just been confirmed as vice-president moments before, narrowly escapes the attack and is immediately sworn in as president