Murat Kurnaz writes: I left Guantánamo Bay much as I had arrived almost five years earlier — shackled hand-to-waist, waist-to-ankles, and ankles to a bolt on the airplane floor. My ears and eyes were goggled, my head hooded, and even though I was the only detainee on the flight this time, I was drugged and guarded by at least 10 soldiers. This time though, my jumpsuit was American denim rather than Guantánamo orange. I later learned that my C-17 military flight from Guantánamo to Ramstein Air Base in my home country, Germany, cost more than $1 million.

When we landed, the American officers unshackled me before they handed me over to a delegation of German officials. The American officer offered to re-shackle my wrists with a fresh, plastic pair. But the commanding German officer strongly refused: “He has committed no crime; here, he is a free man.”

I was not a strong secondary school student in Bremen, but I remember learning that after World War II, the Americans insisted on a trial for war criminals at Nuremberg, and that event helped turn Germany into a democratic country. Strange, I thought, as I stood on the tarmac watching the Germans teach the Americans a basic lesson about the rule of law.