On the eve of the U. S. Open,  Congressional's Blue Course is under microscopic scrutiny, and the discussion of the course setup is peppered with predictions, opinions, and alarms.  Phil Mickelson says that the Blue is a fair test.  He likes the options provided on the par 5's and seems to hint that scoring could be lower than usual.   Writer Geoff Shackelford, on the other hand, warns that the 16th hole -- where a bank has been shaved ... Full Story