Moral Question

This is a Moral Question. This is an imaginary situation, but it is interesting to decide what one would do.

The situation:
You are in the Midwest, and there is a huge flood in progress. Many homes have been lost, water supplies compromised and infrastructures destroyed. Let's say that you're a photographer out getting still photos for a news service, traveling alone, looking for particularly poignant scenes.

You come across George W. Bush who has been swept away by the floodwaters. He is hanging on to a tree limb and is about to go under. You can either put down your camera and save him, or take a Pulitzer Prize winning photograph of him as he loses his grip on the limb.

So, here's the question, and think carefully before you answer.

Which lens would you use?