Khalid Sheikh Mohammed, or KSM, confessed to being the al-Qaida mastermind behind 9/11 and other terrorist attacks around the world. He also was tortured by the CIA. Now, KSM stands at the epicenter of the most vexing questions that have arisen during our modern age of terror that began on that blue-sky September morning. Chief among them: Can someone who the U.S. government has admittedly tortured ever be fairly tried for crimes he admitted under duress? And will the United States, a nation that prides itself on its foundations of democracy and the rule of law, ever bring Mohammed to justice? What does it say about America that it can't lay its case publicly for the world – and the survivors of the nearly 3,000 victims – to see? “Family members of most murder victims do not have to wait 20 years or more after the crime to have a trial of those accused of the crime,” Carie Lemack told USA TODAY reporter Josh Meyer, who’s followed the case for two decades. For now, Mohammed remains in Guantanamo. To read more, visit USATODAY.com #september11