Government actions matter less then their willingness to admit them.
Executing an innocent man is wrong, mistake or not. Maintaining a secret prison is worse, no matter how comfortable the prisoners.
Bombing an innocent village is wrong, no matter the reason. Covering it up is worse.
If my government is keeping secrets from me, do I have real representation? What does taxation without representation mean? How much say does that give me? How can I know which secrets should be kept if I don't know what they are?