What's Going on With Derivatives?

The world has gone a little bonkers and I'm very happy that I'm not so located in life that I have to be an apologist for it. derivative instruments have made 10 percent margins of the 1920s you know look like what a small town banker in Nebraska would regard as conservative compared to what goes on now. Berkshire Hathaway will if we think something makes sense and Charlie and I understand it we may find ways to use them to what we think will be our advantage.