It's a fair bet that no high-powered American law firm will lend a caring hand to the relatives of the seven Iraqis murdered last month by a suicide bomber named Abdullah Salih Al Ajmi and two accomplices. That's too bad, seeing as how Ajmi was himself a beneficiary of some of that high-powered legal help.

Ajmi is a Kuwaiti who was 29 when he blew himself up in the northern city of Mosul in April. But before that he had spent more than three years as an enemy combatant at Guantanamo, where he was known as "Captive 220." He...