CEO Jamie Dimon blasted several major U.S. financial regulatory initiatives on Monday and vowed to oppose those he said would not make banks safer. The outspoken executive, 68, who runs the largest U.S. lender, criticized what he called overlapping or ill-conceived rules on capital requirements, card payments and open banking. "It's time to fight back," Dimon said at a conference. Many banks are afraid to "fight with their regulators, because they would just come and punish you more," he added.