CANBERRA – Perhaps it is going too far to say, as someone did after the Gulf of Mexico oil spill two years ago, that most Americans want a president who is cool, calm, and collected in a crisis – except when there is a crisis. But of all the charges thrown at President Barack Obama by his domestic political opponents, the hardest for most outsiders to accept is that he is too emotionally disengaged: all brain cells and no red-blood cells.