That's not true lol. There is a gigantic supervisory apparatus constantly breathing down the IC's neck, including but not limited to your very own elected Congressperson's investigative powers.
Perhaps you mean to say: I don't see it eliminating their misconduct and behavior.
The notion that the CIA is “not limited” by checks and balances is beyond laughable.
How many people have you met who work there? Ever talked with someone about the limitations (or lack thereof) on their work?
I will bet the answers are zero and no. Am I wrong?