http://seekingalpha.com/article/2428045-how-buffett-is-changing-the-future-of-berkshires-float-from-insurance-to-uncle-sam
How Buffett Is Changing The Future Of Berkshire's Float - From Insurance To Uncle Sam
Great post on SA. Maybe someone already posted it before, but I thought it would be relevant given the current state of the market and price of BRK