yes, I am, and yes I and others in my profession do have an open mind.  But when one engages in CMs, he/she is engaging in moral misconduct (for lack of a better term).  Its' one thing to attempt CMs in order to try to hide a deceptive result.  It's a completely different thing to engage in CMs to "help oneself".  The vast majority of three-letter agency employees/applicants do not attempt to "help themselves".  Those who do are telling us, "I will cheat if it helps me", even if they've done no wrong.  It shows a clear lack of integrity.  What else will they cheat at?  Violating a suspect's rights?  Falsifying an agent's report?  These are the types of applicants who are in the 10-50% you refer to.  Closer to 10% than 50%, but regardless of the percentage, lack of moral character is every bit a disqualifier as one who is deceptive to the relevant issues.  I don't want someone like this guarding our nations secrets or protecting our borders.  Do you?