Even as screwy as she was, I never heard any evidence that Cynthia McKinney actually leaked any classified information. This puts Leahy a notch below Cynthia and makes him a much more dangerous threat to this country.
I might have agreed with this until about 1917 when the modern forces of evil crystallized in the creation of the Soviet Union. I have to confess that I truly believe that many on the Democratic side of the aisle are far more sinister than just members of the "loyal opposition". They are convinced - either consciously or unconsciously - that a socialist worldview/apparatus (and all that that entails) is the way of the future, and their cause does not allow them to follow the rules of the game as they have been set up.
America spreads freedom and democracy to the remainder of the world and the Leftists criticize us for forcing our way of life on them. At the same time the Leahys of our country leak secret information to force their desires and bury themselves in the ground to avoid the negative exposure. Their interests are the only interests which are meaningful and they are not concerned through what means they achieve them, including America's security.