U.S. intelligence agencies have built their own version of the famous Russian-designed AK-47 assault rifle for use by American snipers in Iraq. The snipers are firing at one form of deadly insurgent and terrorist attack, the so-called "spray and pray" method used by those who try to sow terror by emerging from hiding and firing a machine gun randomly into crowds. The special U.S. snipers have used .50-caliber long-range rifles for killing terrorists. Now, they are using the modified AK-47s to kill insurgents without a normal shot to the head. Instead, snipers are killing insurgents with shots to the heart,...