London – In the buildup to ⁠2016’s Brexit referendum, JPMorgan CEO Jamie Dimon said the U.S. bank could shift 4,000 jobs from Britain, joining a chorus of executives who warned a vote to leave the European Union would ravage the country’s finance industry. A decade later, the Wall Street giant plans to build a tower in London’s Canary Wharf that it says could house up to 12,000 employees — a commitment hailed as “a multibillion pound vote of confidence” by