Those who advocate military action must also accept and consider the consequences regional and possibly global conflict and all of the associated perils of war.
The blast dramatizes the perils the war still poses for Americans despite a Pentagon report Monday that touted a sharp decrease in violence in Iraq in recent months.
There is also the war now developing as what might best be described as "Shariah Spring" metastasizes into grave new perils for America's allies and interests in the Middle East, North Africa and beyond.