The proof, as they say, is in the pudding.
The revelation that intelligence gleaned from the CIA's so-called black sites helped kill bin Laden was seen as vindication for many intelligence officials who have been repeatedly investigated and criticized for their involvement in a program that involved the harshest interrogation methods in U.S. history.Link
"We got beat up for it, but those efforts led to this great day," said Marty Martin, a retired CIA officer who for years led the hunt for bin Laden.

"Unlimited tolerance must lead to the disappearance of tolerance. If we extend unlimited tolerance even to those who are intolerant, if we are not prepared to defend a tolerant society against the onslaught of the intolerant, then the tolerant will be destroyed, and tolerance with them." - Karl Popper
“Necessity is the plea for every infringement of human freedom. It is the argument of tyrants. It is the creed of slaves.” - William Pitt
"Logic. There is little logic among the cultural elite, maybe because there is little omnipresent fear of job losses or the absence of money, and so arises a rather comfortable margin to indulge in nonsense." - Victor Davis Hanson