“Imagine for a moment that you discovered a way to travel through time, making it possible for you to ensure either that Hitler never be born, or that if born, he would not live long enough to rise to political power. Under what circumstances do you think it would be morally justified to kill to prevent the Final Solution (and for those who can’t get past the emotional problem of what it would be like to personally pull the trigger, assume that you could send someone else to perform the deed)?”
https://theosophical.wordpress.com/2011/10/25/would-you-kill-baby-hitler/
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