What is the main conflict in Total Control by David Baldacci?

A fatal sabotage of an airplane, murdering 130 people and the Chairman of the Federal Reserve Board, the apparent corporate espionage activities of a computer expert for a national technological corporation, and the murder of a gay investment analyst in New York, appear to be thoroughly unrelated crimes, except that tenacious and persistent FBI agent Lee Sawyer is determined to learn how the three events are connected.