[Captain Walker]

"Treadstone" in the Jason Bourne movies represented "Operation Artichoke", which was a CIA program to move junior military officers from military service into roles as assassins; the specific task of that training was to remove moral qualms they had about taking someone's life.

Whatever else one may have thought about the series, this seemed to have been portrayed rather well.

[mdmathis6]

I think that was a mistake. You want folks to have moral qualms about taking innocent life but to not have qualms about taking the lives of those who are provably guilty and a threat to your country and your fellow countrymen. It goes part and parcel of God’s charge to the governments of the world that they be swords...lifted up against the evils of the world of men! There must be guard dogs appointed to protect flocks and cattle that are the nations of men!