In an idealized view, our judicial system is insulated from the ribald passions of politics. In reality, those passions suffuse the criminal justice system, and no matter how compelling the case for suppressing evidence that would actually effect the trial might be, given the politics at play, there is no judge in the country who will seriously endanger the prosecution. Instead, with the defense motions duly denied, the case will proceed to trial, and then (as no jury in the country is going to acquit KSM) to conviction and a series of appeals. And that's where the ultimate effect of a vigorous defense of KSM gets really grim.
At each stage of the appellate process, a higher court will countenance the cowardly decisions made by the trial judge, ennobling them with the unfortunate force of precedent. The judicial refusal to consider KSM's years of quasi-legal military detention as a violation of his right to a speedy trial will erode that already crippled constitutional concept. The denial of the venue motion will raise the bar even higher for defendants looking to escape from damning pretrial publicity. Ever deferential to the trial court, the U.S. Court of Appeals for the Second Circuit will affirm dozens of decisions that redact and restrict the disclosure of secret documents, prompting the government to be ever more expansive in invoking claims of national security and emboldening other judges to withhold critical evidence from future defendants. Finally, the twisted logic required to disentangle KSM's initial torture from his subsequent "clean team" statements will provide a blueprint for the government, giving them the prize they've been after all this timea legal way both to torture and to prosecute.
In the end, KSM will be convicted and America will declare the case a great victory for process, openness, and ordinary criminal procedure. Bringing KSM to trial in New York will still be far better than any of the available alternatives. But the toll his torture and imprisonment has already taken, and the price the bad law his defense will create will exact, will become part of the folly of our post-9/11 madness.