Lets say there was a time machine, and you were beamed back to when Hitler or any other Horrible person like him was 10yrs old. Now you know 100% for a fact this person is going to grow up and be responsible for the murder of 1,000's and 1,000's of people. Would you kill him? Now I know what the knee jerk reaction would be, "Hell Yes"! But think this is a 10 year old little child, you are an adult. Could you look him or her in the eye and pull the trigger?