Warren Buffett had $1.4 billion wiped from his fortune Tuesday after Wells Fargo & Co. fell 3.3 percent as the fallout continued from revelations that bank employees had opened more than 2 million accounts without clients’ approval. Berkshire Hathaway Inc., the lender’s biggest shareholder, fell 2 percent, causing the 86-year-old’s fortune to drop more than anyone else’s on the Bloomberg Billionaires Index. The U.S. investor is the world’s fourth-richest person with a net worth of $65.8 billion.Tuesday’s decline came amid a global equity sell off that has wiped out $93 billion from the world’s 400 biggest ... (full story)