Editor's Note: Even as Uighur detainees, once trained in al Qaeda camps, frolic in the Bermuda surf, enjoying their release from the U.S. detention camp in Guantánamo Bay, newly captured detainees in Afghanistan are being read their Miranda rights, as if they were common criminals. The legal framework under which the U.S. government prosecutes the war on terror remains as unstable and controversial as ever. The speech below, delivered in March 2008 by William J. Haynes II, who was just then stepping down from his position as general counsel at the Pentagon, thus remains highly topical. Rare in this debate, it is also eloquent and highly accessible to the non-specialist. We thus reprint it in full and commend it to our readers' attention.

In September 2005, I was sitting in a window seat on a commercial flight from Madrid to Philadelphia. It was mid-afternoon on a Tuesday. The plane was above the clouds in the sunshine, halfway across the Atlantic.

I was returning from a long trip in Europe. It was typically frenetic--six countries in five days, visit after visit with politicians and businessmen, diplomats and soldiers. I was tired, but marveling at what a great job I had. It's like being the chief legal officer of a medium size country. Any conceivable legal issue conjured up by the Department's more than ten thousand military and civilian lawyers could end up in my lap. I remember my head buzzing with those possibilities as I began to doze.

And then it hit me with

You know the story: Nineteen hijackers on four planes murdered almost three thousand innocent people in an atrocity unlike any in American history. What you may not remember as well is that on that day the Department of Defense tracked two suspicious international flights--one over the Pacific, and this one over the Atlantic--suspecting they, too, were hijacked and heading towards an American skyline. And we steeled and readied ourselves to shoot them down.

All of us remember where we were that day. I was in my office on the phone with my wife, telling her to turn on the TV, when I saw the plane hit the second tower. I raced down to one of the Pentagon command centers with some others, to set up a crisis action cell. As the American Airlines plane hit the other side of our building, I felt only a shudder pulse the monstrous concrete structure. And then it was like I was in a movie playing fast forward. Smoke and confusion, multiple conversations between the President and the Secretary, sending my own deputy off with the Deputy Secretary to a survival site in the event that another plane came at our side of the Pentagon, hearing situation reports about dead and wounded being treated in the Pentagon courtyard.

I spent nineteen hours in the Pentagon that day, mostly at the elbow of then-Secretary of Defense Don Rumsfeld and then-Vice Chairman of the Joint Chiefs, General Dick Myers. Most of the time I was in two Pentagon command centers, reacting and contemplating possibilities I had never expected to face. These scenarios had nothing to do with corporate transactions, environmental cleanups, government contracts, class action litigation, or any of the other issues that had been on my mind when I first took the job, barely four months earlier.