The Lockerbie bomber was set free by the British, with US assent, but Julian Assange is in jail.
IMHO, the best thing Assange could do would be to dump all the 250,000 documents ASAP, there is nothing to be gained by delay--and the chances are that Wikileaks will be shut down before very long, "doomsday code" or not.
Let the public decide whether damage has been done--or not. If not, no harm--no foul. If so, then he'll have to face the music in court.
Honestly, I don't think anything in Cablegate could possibly damage US National Security more than spectacle of this public prosecution of Julian Assange and Wikileaks--because it undermines anything America might say in defense of bloggers in places like China, Iran, Myanmar or North Korea; and makes a hollow sham of America's commitment to Freedom of the Press, the US Constitution and Bill of Rights, or the public's right to know.
IMHO, The US should be giving Assange a medal, instead of prosecuting Wikileaks founder on trumped up sex charges.
At least Matt Drudge has been covering the story properly.