The bank last fall said that its employees opened up 2 million bank accounts without customer approval to meet unrealistic sales goals.
The Oracle of Omaha is bullish on Apple's flagship iPhone product.
The topic arose at Berkshire Hathaway's shareholder meeting in Omaha, where Buffett talked about his struggles to find ways to deploy the company's enormous hoard of more than $90 billion in cash, at a time when it has been hard to find worthy investments at an attractive price.
Shareholders overwhelmingly rejected a proposal that would have required Berkshire to disclose its political contributions twice a year. "I can't think of any business where [Berkshire Hathaway is] in where our tax rate puts us at a - and we're in a lot of businesses - significant disadvantage with foreign countries", Buffett told CNBC's Becky Quick.
"We're not going to change anything at the railroad just for some little tax jiggle", Munger said, referring to Berkshire's BNSF unit.
"Nobody should be roadkill", Buffett said on Saturday at the annual meeting of his Berkshire Hathaway in Omaha, Nebraska.
"I don't know that much about cyber, but I do think that's the number one problem with mankind". "We don't like that and we shouldn't use your money that way for a long period of time", he said at the meeting.
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Tax reform may not be uppermost in most voters' minds, but the top income-earners are still enjoying the benefits of the George W. More than two-thirds of respondents support allowing mortgage interest to be deducted from an individual's taxable income.
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Republicans have long contended that the law is an unprecedented overreach of federal authority. Two Senate Republicans have already stated their opposition to the current plan.
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However, Trump said he feels "confident" the bill will pass through the Senate and said it "will get even better". The House bill would shift power to states to set important health insurance rules.
'I don't value IBM the same way that I did six years ago when I started buying, ' Buffett said on Saturday.
Warren Buffett says owning an index fund is better than owning shares in his own company, Berkshire Hathaway Inc.
More than 30,000 people are expected to attend the annual Berkshire Hathaway shareholders meeting where Buffett and his Vice Chairman Charlie Munger preside over a Q&A session.
Buffett has said Berkshire could have a new chief executive within 24 hours if he died or could not continue, and that nothing had changed just because he praised fewer managers than usual in his February shareholder letter.
Buffett said flawed compensation is also a problem for hedge-fund managers, arguing that people would be better off sticking their money in a low-priced index fund.
"Watson is a pretty fantastic invention", Buffett said. Today, investors have to pay $934.15 per Amazon share and $950.28 per Google stock.
Other recent Berkshire subsidiary CEO turnovers include Cathy Baron Tamraz, who retired as CEO of press-release distributor Business Wire Inc., and was succeeded by Geff Scott. While Buffett met Mr Peanut at the Kraft Heinz booth, Miami Dolphin player Ndamukong Suh wandered about 1m away without a crowd. "We would like to own 100% of any business that we run".