. >> i think if you lookhe at ten year record of wells fargo ten years from now, you're very likely to find it most of its kpet torsion. >> would you be buying more shares now if you could? you can't becausethe bank threshold? >> yeah. yeah. i- i don't want to get recommendations on which stocks to buy. >> reporter: in tms of wells fargo, berkshire is the largest single shareholder but theyare passive investor. that's another reason he has not gotnvolved with any issues that have come forward for wells fargo. for "nightly business report," i'm becky quick inomaha, nebraska. >> mr. buffet was very critical of bitcoin. over the weekend he called it rat poise sin and he told becky it's an acid that creates nothing. the vice chair charlie munger said the same things as did mr. buffet's good friend bill gates. >> bitcoin is worless artificial gold which if it succeeded would filter a lot of illicit activity. now that is not something ior think the needs. >> bitcoin and icos i agree completely, it's one of the crazierng speculative t where it's not as an asset class, you're not producianythi