This Week in Barron's: As the U.S. airline industry consolidates into three carriers investors may want to take a look at United Continental; UK Insurer, UNUM Group, has made changes for the future, starting with getting out of long-term care and focusing on profitability and steadying returns; Watson Pharmaceuticals makes a global acquisition that will help make them a major player on the international stage; Western farmers are planting less rice just as inventories are expected to plummet, and with no change in demand expect a drastic price change;