As I read more about this, I wonder if there has yet been a powerful intel (or otherwise secret) government organization that hasn't abused its power in some ma

As I read more about this, I wonder if there has yet been a powerful intel (or otherwise secret) government organization that hasn't abused its power in some major way. Without organizations that can keep secrets, you lose a lot of options (such as undercover operations, and surprise nuclear defence systems), but I wonder if you can't draw parallels to open source. When your government is "closed source", the risks are higher as there are less checks and balances. But maybe, like many open source efforts, keeping the government entirely transparent would increase efficiency enough to make up for the types of operations that you can no longer undertake.