That would effectively give those bonds a AAA credit rating. So far, he says one insurer has turned him down and he hasn't heard from the other two.
This is a transcript of this morning's live phone conversation:
Becky Quick: We know Warren that you've already put a plan out where you are, in fact, a bond insurer yourself. You have a new company that's doing that. But beyond that, Ambac, FGIC and MBIA, they all have some significant problems. What do you think needs to be done?
Warren Buffett: Well, last Wednesday, as you know we have formed a new bond insurer. And last Wednesday, Berkshire Hathaway made a firm offer to the three largest bond insurers, who in aggregate I think, insure about 800 billion (dollars) of tax exempt bonds.
Read the complete interview