The bad parts of nuclear power is extremely concentrated and so has great visibility. I have asthma and I used to live near a coal plant. My lifespan is shortened considerably - not to mention the huge decrease in quality of life. And I'm just one the many millions who are affected by increased pollution and particulate matter in the air. However because the effects of coal is diffused from your perspective you have no idea the damage it causes to people like us. On aggregate coal kills more people (earlier than what their lifespan would otherwise be and that has to count for something).