Actually, it isn't so.
In a hypothetical America where state secrets never leaked, consider all the significant things that we wouldn't know. A massive wiretapping program to spy on Americans without warrants would never have been revealed, despite its illegality. The torture of War on Terror detainees would've gone on without anyone knowing. Innocents at Guantanamo Bay would never have been released, nor would we know that some were held without access to the International Red Cross, contrary to official claims. Americans would be totally ignorant of the fact that CIA drones are killing people in Pakistan, Yemen, and Somalia, among other places. The existence of an Obama Administration kill list with American citizens on it would be completely unknown to us.
There are other things we wouldn't know, if the champions of state secrets and foes of national-security leaks got their way. But the foregoing list is sufficient for our purposes. Think through what it would mean if all those things had stayed secret instead of leaking to the press. If America is going to adopt a massive, society-wide surveillance program, isn't that, at minimum, a subject for citizens to debate? In what sense would we be living in a representative democracy if neither the bulk of Congress nor the people was even told about a multi-country drone war waged in our names? Isn't the way the president handles American citizens suspected of terrorism something voters should evaluate before a reelection campaign? Isn't grappling with his policy especially vital if he sets the precedent of extrajudicial assassinations? Keeping those secrets would render citizens unable to debate or influence hugely significant policies.
Yet some insist all should've remained clandestine.
President Obama's supporters should understand better than anyone how much our politics would be constrained if everything classified as an official secret stayed that way. During the 2008 campaign, Obama criticized numerous Bush Administration policies that would've been unknown to the public if not for the fact that zealous national-security reporters brought them to light. Think about that. A man who handily won the presidency campaigned partly on the proposition that lots of formerly secret policies were actively doing harm to America's safety and reputation.
Obama's critics ought to discern the same lesson.
Take John Yoo, whose legal work in the Bush Administration helped enable the torture of human beings. He is often critical of Obama, but is somehow blind to the tension in his own arguments.
Wrote Yoo in The Wall Street Journal (emphasis added):
Recent leaks have blown the cover of the Pakistani doctor who sought to confirm bin Laden's presence in Abbottabad; revealed a British asset who penetrated al Qaeda and stopped another bombing of a U.S.-bound airliner; and assigned credit to the administration for the Stuxnet computer virus that damaged Iran's nuclear program (even identifying the government lab that designed it).
American intelligence will have a steep hill to climb when it asks for the future cooperation of agent-assets and foreign governments. Notably silent are the Democrats and media figures who demanded the scalp of a Bush White House aide, Scooter Libby, for leaks by another government official of the cover of a CIA operative who had left the field years earlier.
Yet the greater threat to security comes from Mr. Obama's micromanagement of the drone campaign. Poring over the files of kill-list nominees recalls Lyndon Johnson's role in tightly controlling bombing strikes during the Vietnam War. During Operation Rolling Thunder, Johnson held Tuesday lunches when he and his advisers picked targets to avoid attacks that might provoke Soviet or Chinese intervention. This misuse of presidential time produced a myopic focus on tactics. Photos of LBJ hunched over maps said it all: Staring at individual targets prevented him from seeing the broader strategic picture in Vietnam and Southeast Asia. Worse yet, it encouraged the military to set aside its judgment in favor of the president's political preferences.
Yoo starts this excerpt by complaining about national=security leaks. But by the third paragraph, he asserts that an even "greater threat to security" is the method the Obama Administration is using to assemble its kill list. Unmentioned is the fact that he wouldn't know about that method -- "Mr. Obama's micromanagement," as he puts it -- but for a New York Times article describing it. And that story was published thanks to high-level leaks (probably authorized) about formerly secret protocol.