>Don't you realize that the institution that's being examined isn't necessarily on your side?
CIA or Wikileaks? CIA absolutely not, Wikileaks probably yes.
>Without oversight, how could they possibly be kept on the good side?
CIA is the foreign intelligence agency of a particularly murderous country, they can’t possibly be kept on the good side.
Wikileaks seems to have oversight built in that they need to be trustworthy enough for people to leak to them.
>Having gone so long without oversight, how far have they strayed?
CIA has a long history of doing terrible things, I doubt they’ve strayed too far from that.
>What would happen if a cleared individual decided to take an action without asking anybody or telling anybody?
What would happen if the sun came up in the morning? Things would probably be the same they were yesterday.