IG's inspector generals in the Govt

I learned something today that shocked me. it seems the IG's do not have any authority to do anything about complaints. They supposedly investigate then turn it over the the agency that the the complaint was turned against. In a sense the IG's have been lying to the american people whether the it was the troops, people in the difererent agencies etc. In other words they are a cover for the wrong doers and to protect them. It always reminds me of the different projects that I have worked on and things never got fixed. I wonder how many f 16 pilots could have been saved when they first came out because of the wiring problems. I remember talking to a mechanic in the air force and the enlisted people finallly got it fixed. There is a story that the FAA will lnot force the airlines to fix some of the problems until enough blood has been spilt. Again it was shocking to hear that the IG's do not have any power to fix the troubles or at least keeep it a secret who described the problem and at least keep the people names a secret. Why have any layers of this type if they are not going to do something or least keep the people's name a secret.