The Federal Reserve on Tuesday took a step toward easing mortgage foreclosures threatening millions of Americans, announcing that it would write down troubled mortgages to keep people in their homes. Fed Chairman Ben Bernanke said the initiative would specifically include $74 billion of assets held in connection with the bailout last year of Bear Stearns and American International Group. "The goal of the policy is to avoid preventable foreclosures on residential mortgage assets that are held, owned or controlled by a Federal Reserve Bank," he said in a letter to Rep. Barney Frank, chairman of the House of Representatives financial...