The national president of the flight attendants union is threatening a nationwide strike against all airlines if any labor contracts are abrogated by a bankruptcy judge. Both United Airlines and US Airways have asked a U.S. Bankruptcy Court to impose a series of concessions if consensual cost-cutting deals can not be reached soon. "Airline management needs to understand that there will be serious consequences if they persist in their attacks on our contracts," said Pat Friend, president of the Association of Flight Attendants, which represents attendants at 26 airlines, including United and US Airways. Leaders of the union are meeting...