I have a theory that for every possible disaster there is a frustrated mid level bureaucrat somewhere secretly hoping that his (or her) doomsday scenario will happen so they can pull that old memo out of the bottom drawer of the desk and say "See I told you this would happen".
Since the number of frustrated mid level bureaucrats is effectively infinite and many may harbor more that one scenario, it is a virtual certainly that after every disaster someone will come forward claiming to have been a voice in the wilderness.
Maximum Mary Schiavo, former Inspector General of DOT where in spite of her success she seemed determined to provoke controversy.
Or Linda Trippwho ratted Bill Clinton.
Then there's Russ Tice,
who was one of the sources used by the New York Times in reporting on the NSA wiretapping controversy. He had earlier been known for reporting suspicions that a DIA colleague of his might be a Chinese spy. A serial whistle blower.
Elia Kazan, a former member of the communist party who testified before the House Un-American Activities Committee and "named names".