Given that the activities of the DOJ and the NSA do in fact have a direct and immediate impact on individuals that the public law is written, ostensibly, to protect, how can it be argued that these organizations should be allowed to interpret the law in a secret manner?
My point is, that a law which as written to govern the activities of the DOJ and the NSA, does in fact apply to the public.
Consider: there are many laws which govern the activities of the police. These laws are public laws, and effect the public directly. When the police violate these laws (as they often do), a public court interprets the public law with which said police failed to comply, and thus violated your, the public's, rights. The secret FISC courts make it impossible for you to have any recourse in the manner in which your rights are being violated.
This is the stuff of communist China.