Glenn Greenwald compares the danger of government secrecy with the dangers of excessive disclosure of government secrets:
The harms from excessive governmental secrecy vastly outweigh the harms from excessive disclosures; they’re not even in the same universe That’s why WikiLeaks is such a vital and important movement. It’s also why I have zero respect for those who so vehemently denounced WikiLeaks’ supposed disclosure recklessness without devoting even a fraction of the same rage to the obsessive, anti-democratic, dangerous government secrecy regime being not only maintained, but vigorously increased, even a full decade after the 9/11 attacks. Such critics have little interest in issues of transparency v. secrecy; their manifest agenda (like the often-overlapping American “terrorism expert” industry: more on them in the next couple days) is to serve the state, demonize its adversaries, and protect its interests. That’s what indiscriminate secrecy achieves, and it’s why such people are so rarely bothered by it.
Here is a recently-revealed real life example of the dangers of government secrecy:
http://www.huffingtonpost.com/2012/03/31/cia-secret-prison-polish-_n_1393385.html