I'd say the traitors within who have much to hide, and there are a lot of them whose business they demand kept secret:

...if the American people had ever known the truth about what we Bushes have done to this nation, we would be chased down in the streets and lynched - George Bush Senior (speaking in an interview with Sarah McClendon in December 1992)

And they are making damned well sure that the truth remains hidden, under "national security" laws/Executive Orders.
.