Here is a moral question for you. It is an imaginary situation, but it is fun to decide what you would do. The situation: You are in the Midwest, it is a cloudy rainy day and there is a huge flood in progress. Many homes have been lost, water supplies compromised, and infrastructure destroyed. You are a photographer out getting still photos for a news service, traveling alone, looking for particularly poignant scenes. Suddenly, you stumble across a Marine helicopter crash. It's Bill Clinton's and he's struggling to keep from being swept away in a raging river and you have the choice of rescuing him or getting a Pulitzer prize-winning photograph of the death of a President... Question: What shutter speed would you use?