Evidence against the American terror suspect was obtained through torture, his lawyers say.
When alleged Al Qaeda sympathizer Jose Padilla landed in Chicago in May 2002, he was met by federal agents armed with a warrant authorizing them to take him into custody.
To obtain their warrant, the agents told a federal judge that two weeks earlier a confidential source had revealed that Mr. Padilla was plotting to build and detonate a radiological "dirty" bomb in the United States.
What the agents did not tell the judge is that their "confidential source" was not speaking voluntarily. His information had been obtained in controversial interrogation sessions at a secret Central Intelligence Agency prison overseas.
The confidential source was a man named Zayn Abu Zubaydah, the same individual identified last week by President Bush as the first Al Qaeda suspect subjected to harsh interrogation tactics by US officials.
"We knew that Zubaydah had more information that could save innocent lives, but he stopped talking," the president said in a speech on Sept. 6. "So the CIA used an alternative set of procedures."
In 2002, the agency's pressing goal was intelligence-gathering to disrupt possible terror attacks rather than a law- enforcement operation to gather evidence that might be used against American citizens in American courts. But now, four years later, the information from those harsh interrogation sessions conducted by or at the behest of the CIA is playing an important role in government efforts to convict Padilla in a terror conspiracy case in Miami.
The case is emerging as a major test of whether such intelligence information is admissible in US courts. And it highlights the difficult debate over military commissions currently under way in Congress, which is wrestling with how best to protect national security while also preserving America's tradition of due process and fair trials.
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