I wasn't referring to "Some" people as your referred to them, but the top officials, supervisors and directors of that agency. And in fact there were multiple reports going back a year or two which reported there were many agents of that agency that were going to, or wanted to come forward and testify to wrong doings committed by that agency.
What happened to all those in the rank and file agents who wanted to come forward and blow their whistles?
They don't exist, and never have. The agency is corrupt to it's very core. I wouldn't trust them to testify as to the direction the sun will rise tomorrow morning.