Michael Hughes: Critics of the war in Afghanistan consider the terrorist attack that killed six Americans near Bagram airbase as yet another indication that it is time for the U.S. to withdraw military personnel from the country post-haste, while proponents of a long-term U.S. military presence perceive it as a reason why the United States cannot leave. How does one explain such diametrically opposed interpretations of the exact same event? The problem is both sides are missing the big picture. Click here to read more.