The rising power and prominence of the nation's loudest, meanest voices obscures what most of us personally experience: Most people are sane and generous -- and too busy to tweet. It turns out, you're right. We dug into the data and found that, in fact, most Americans are friendly, donate time or money, and would help you shovel your snow. They are busy, normal and mostly silent. These aren't the people with big Twitter followings or cable-news contracts -- and they don't try to pick fights at school board meetings. So the people who get the clicks and the coverage distort our true reality.