In other business news, the nation’s largest retailer, Wal-Mart, has agreed to pay $135,000 to settle federal charges that it violated child labor laws in Connecticut, Arkansas and New Hampshire. But as part of the settlement the government has made an unusual arrangement with the store. The government has agreed to give the store 15 days of advance notice ahead of any future investigations into complaints over wages or hours. John Fraser, the Labor Department’s top wage official under former Presidents Bush and Clinton, said the deal gives Wal Mart a special prvilege that no other store has.