A Moral Question

Pretend that you're a photographer who has gone out to the Midwest to take pictures of an ongoing flood. Now as you're wandering around looking for a good shot, you see Hillary Clinton in the middle of a rushing river, holding onto a thin branch so she won't get swept away. The branch is about halfway broken, and you know it will break altogether in a matter of minutes. Now you can do one of two things: You can either rescue her or take an award-winning picture that will secure your place in photographic history.
Now for the question:
Which lens would you use?