It was to be the biggest industrial merger ever. In late 2000 General Electric (ge), the world’s most valuable company at the time, agreed to pay $43bn for Honeywell, a smaller American manufacturer of, among other things, aircraft electronics. Jack Welch, ge’s ceo and America Inc’s capitalist-in-chief, put off his retirement to see it through. The transaction, codenamed “Project Storm”, seemed a done deal. American authorities gave…