That’s when things started getting scary. Fifth Third, a regional bank, said it had lent Tricolor $200 million, nearly all of which it now expected to write off as a loss. Same at JPMorgan Chase, which reported it was out $170 million that it will presumably never see again. At Barclays the figure is nearly $150 million. They’ll survive the loss, but the incident cast into sharp focus a risk that had otherwise lurked in the shadows, growing year by year: a cascade of bankruptcies that triggers a widespread financial crisis.