WASHINGTON AND CAIRO - In the war on terror, the US is careful to show how fairly it's treating the hundreds of orange-suited Taliban and Al Qaeda fighters locked behind the razor-wire of the US base at Guantanamo, Cuba. But what the US isn't trumpeting is a quiet practice of shipping key Al Qaeda suspects to the Middle East for interrogation. One reason for this new approach, US officials privately say, is that in some cases these militants' home countries have a better understanding of Islamist groups, their contacts, customs, and language. But there's another reason, say US sources. These...