Two weeks ago, Turkish police arrested an Islamist with ties to many upper tier al-Qaida members. The man not only tried to get asylum in Germany, but claims to have known about the London bombings beforehand and to have helped the 9/11 pilots. The Turkish interrogators in Istanbul's high-security prison wanted to be polite; they wanted to show respect for Islam. They offered their prisoner, an Islamist named Luai Sakra, 31, a chance to pray during a pause in questioning. They'd done the same thing with earlier suspects. The move was supposed to establish trust. But this prisoner reacted a...