In this era we live in, particularly since the NEO CONS gained such influence in our Government particularly with Bush/Cheney, what used to be left is now right and what used to be right is now left, Up is down, down is up, and the media puts across to the confused and easily led public, only what their corporate owners wants them to know.
It used to be the fascists, or despotic tirants on far left who would do the waterboarding, hiding prisoners to torture them in ways to get the 'truth' they wanted to hear, then follow it up with signatures and a promise of release. The USA Hung some Japanese for such tactics.
Conservatives representing the right in those days were aghast at the very thought of such a thing, But enter Reagans promoters bringing religion into the picture to get the fundamentalists votes and by the time Bush/Cheney comes along, God is on our side no matter how many recognized lies were told to promote an Iraq war, and since God is on our side torture to these righties is now right, waterboarding is no longer torture, because our side is doing it. and the patriotic thing to do is back our leaders Bush/Cheney no matter what far left they've taken up and labeled it as 'right' because its our side and god is with us. Polls were taken and some 75% + of self Identified Christiand Fundamentalist approved of torture tactics of Bush Cheney, as apposed to under 10% of those on the left, Today your on the left if you want to save SS, and on the right if you clap and yell out at Republican debate, "let him die" (speaking of the example re; a 30 yr old without insurance) As I said, today up is down, right is wrong, its all backwards.
I'f you'd lived very long you'd easily see just how upside down and backwards things are which again proves the OP's old Nazi statement was true again and used by Bush/Cheney very effectively.
It makes little difference whether far left or far right has used it, its a rotten tactic, whether it works or not, maybe even worse when used under the far right regimes all in the name of god, country and supposed flag waving blind patriotism