Possible Essay topic: How all heroes of Watchmen are forced to question their beliefs

In Watchmen, it is incredibly clear that all of our heroes/antiheroes represent a very clear cut idea of morality. However, everyone of them is forced to question their own beliefs. Rorschach is caught in a quandary when Veidt kills millions to possibly save billions. This is the same thing that president Truman did, but he considers Truman a hero and Veidt evil. He is then forced to choose between reversing his assumptions about right and wrong and trying to take down Veidt or letting evil slide and let Veidt live. The comedian claims that life is a joke but is brought to tears by something that is too heavy for him to deal with. Jon and Laurie both are constantly questioning the validity of even being superheroes. Dr. Manhattan is forced to question whether human life is valuable in an attempt to feel some empathy for the human race. Adrian Veidt claims himself to be the greatest leader in history but still feels driven to ask Dr. Manhattan if he did the right thing. These situations are where we see these character's true colors, and I believe that it would be an incredibly interesting topic.