but the more important part might be the work done by his children, howard buffett, a farmer set to takeover the empire. >>> when warren buffett speaks, investors listen. the legendary 81-year-old investing legend has yet to name a ceo to succeed him but he's picked his son, howard, to become nonexecutive chairman of berkshire hathaway when he leaves. it was a selection that continue founded some investors because howard isn't a high. flying investor on wall street. he's a farmer from illinois. i asked howard what his father means when he calls him "the guardian" of berkshire's culture. >> well, it's pretty simple. it means he's made a lot of promises over the years to a lot of individuals, a lot of manager, a lot of family, and he wants those promises kept and he wants the same culture in place. and so, you know, i'll have nothing to do with running the company, but i understand the company reasonably well. and so there will be a ceo in place that does the day-to-day management, but he also wants to ensure that between the board and a nonexecutive chairman position that really the cultu