It is certain that the USA is using classification to hide law breaking, embarrassment, duplicity, atrocity, and a large number of items that are just being concealed from the taxpayers eyes. Obviously, it is a flawed system that needs independent review, but intelligence agencies will insist on keeping it in-house for the same reasons listed in the first sentence but will constantly parrot National Security and Terrorists. When law breaking, atrocity, etc. are revealed, the Citizenry must respond by supporting the person seeking the common good, the patriotic whistleblower. If you don't, you're just saying, "may I have another."