SEATTLE — An Algerian man, whose sentence for plotting to blow up the Los Angeles airport around the turn of the millennium was thrown out for being too lenient, was ordered Wednesday to spend 37 years in prison.
Ahmed Ressam, who had trained with Al Qaeda in Afghanistan, was arrested in December 1999 when a customs agent noticed that he appeared suspicious as he drove off a ferry from Canada onto Washington’s Olympic Peninsula. A resulting search turned up a trunk loaded with explosives.
Ressam’s capture, after a brief foot chase, prompted fears of a terrorist attack and the cancellation of Seattle’s New Year’s Eve fireworks.
US District Judge John C. Coughenour had twice ordered him to serve a 22-year term; both times the sentence was rejected on appeal.
This time, Ressam’s attorneys conceded that he should face at least three decades to satisfy the appeals courts, but no more than 34 years.
The Justice Department, which previously sought sentences of 35 years and of life in prison, recommended a life sentence again because of the mass murder Ressam intended to inflict. In those pre-Sept. 11 days, it was ‘‘a virtually unimaginable horror,’’ Assistant US Attorney Helen Brunner said.
‘‘If Mr. Ressam had succeeded,’’ she said, ‘‘it is likely hundreds if not thousands of innocent lives would have been lost.’’
Brunner also argued that Ressam still poses a threat, as evidenced by his recantation of prior cooperation, which forced the government to dismiss charges against two coconspirators.
Ressam’s lawyer, Thomas Hillier, disagreed, pointing to a letter Ressam sent the judge this week in which he wrote: ‘‘I am against killing innocent people of any gender, color, or religion. I apologize for my actions.’’
Ressam, who made a similar statement to the court in 2003, did not speak at the hearing Wednesday.
Prosecutors and defense attorneys said they would review the ruling, and neither indicated whether they would appeal. US Attorney Jenny Durkan said that regardless of whether she agreed with the judge, the case represented a victory for the rule of law.
‘‘We afforded a man who sought to do us the greatest harm the full due process of the law,’’ she said.
Coughenour read his lengthy sentencing order from the bench, noting that of the 4,000 to 5,000 sentences he had handed down in his 31-year career, Ressam’s case was the only one he could remember in which the US Court of Appeals for the Ninth Circuit deemed him too lenient.
Nevertheless he thanked the appeals judges for their guidance,.
‘‘This case provokes our greatest fears,’’ Coughenour said. ‘‘Because Mr. Ressam planned this act of violence and took steps to carry it out, many, including the federal government, believe that Mr. Ressam is a continuing threat and he should never see freedom again. But fear is not, nor has it ever been, the guide for a federal sentencing judge.’’
The sentence reflected more than the 35 years maximum for the two most serious of the nine counts Ressam was convicted of: committing an act of terrorism across international boundaries, and carrying an explosive in the commission of a felony.
Prosecutors noted that had Ressam tried to carry out his plot after 9/11, he almost certainly would have been charged with using a weapon of mass destruction, which can carry life in prison.
Coughenour discredited the government’s argument that Ressam would pose a future threat. He will be eligible for release at about age 64, and his prior cooperation with terrorism investigators would make it difficult for Ressam to become involved in any plot were he so inclined, the judge said.
The sentence also took into account Coughenour’s belief that Ressam stopped cooperating because of the effect of extended solitary confinement. His recantation was a ‘‘deranged protest,’’ rather than a true return to terrorist sympathies, Coughenour said.
The judge said if the harsh conditions of his confinement were what caused Ressam to stop cooperating, that should not compound his sentence.
Ressam’s case has been vexing because he started cooperating after he was convicted and was interviewed more than 70 times by terror investigators from the United States, Canada, Great Britain, Spain, Italy, Germany, and France.
Information he provided helped convict several terror suspects; prompted the famous August 2001 FBI memo titled ‘‘Bin Laden determined to strike in U.S.”; and contributed to the arrest of suspected Osama bin Laden lieutenant Abu Zubaydah, who remains in custody without charges at Guantanamo Bay, Cuba.
However, Ressam recanted all of his cooperation when it became clear that the prosecutors were not going to recommend that he serve less than 27 years in prison. That forced the Justice Department to drop charges against two suspected coconspirators, Samir Ait Mohamed and Abu Doha.