What was so shocking, terrible and unfair about flashing Osama bin Laden's ugly mug on a political advertisement? Hillary Clinton's TV spot was the first Democratic ad to make pictorial reference to the al-Qaida terrorist. It was about time. How much the ad helped Clinton achieve her impressive victory in the Pennsylvania primary is hard to tell. It was a vague message touting her ability to deal with emergencies and cited a variety of them -- the 1929 stock market crash, the Cuban missile crisis and Hurricane Katrina, as well as the terrorist attacks of Sept. 11. What's clear is...