Hi,
I have a question from Prison Break. Why does Lincoln say that D.B. Cooper is a "Boy Scout" in this context?
Thanks for your help.

Sucre: Frickin' break room. Are you kidding me?
Michael: They must have changed it since the retrofit.
S: The bulls are camped out in there. They'll never leave.
John: You got a backup plan?
M: There isn't one. It's the only room sitting on top of that pipe. It's the only way out, and we've gotta get back in there.
J: Impossible, Fish.
Lincoln: May be not. Check it out.
S: I don't get it. How come they let him into the guard's room?
L: He's a trustee, ones with a high security clearance.
S: Why him?
L: He can be trusted.
M: How does one become a trustee?
L: Just have a spotless record for the last 30 years.
S: Pretty much counts all of us out.
M: Which means we've gotta get him on board.
L: Forget it. The guy's Boy Scout .