Although I have opposed the use to which the facilities at Guantanamo are being put for years, the plans which the Obama administration is developing to deal with the remaining terrorists held there present problems which they seem not to have considered and which may be unresolvable.
The Bush administration already released about two thirds of those being held at GITMO. They released all the easy prisoners. They sent home the ones whose countries would welcome them and they tried the ones where the evidence was easy to argue in court. Even so, a significant number of those they freed immediately returned to fighting for al Qaeda or the Taliban or resumed engaging in acts of terrorism. What they've left for Obama to deal with are prisoners who are confirmed to be serious terrorist threats, but against whom the evidence is weak or hard to present, even in a military tribunal, and those prisoners who might face persecution in their home countries and who no other country will take because they remain suspicious that they will be involved in future violence if given an opportunity.
If we take them out of GITMO either permanently or to face trial, we have to put them somewhere. Evidence suggests that our prisons are already a breeding ground for potential terrorists. The recent terror plots in Miami and New York both originated with Muslim converts who had been radicalized in prison. Allowing these terrorists from GITMO who really are "the worst of the worst" into the prison system where they will be treated by some as celebrities and role models could prove to be disastrous. Even in the relative isolation of a supermax facility their influence would be felt; passed on through the several hundred other terrorists already in the federal and state prison system and the underground communications networks of the prison gangs.
The only alternative would be to put them in a completely separate maximum security facility, either built or adapted to house them, inside the US. Although many governors are trying to keep GITMO prisoners out of their states, governors in states with the most severe economic problems might be persuaded to offer facilities in their states in exchange for federal dollars. Michigan's Governor John Engler has already offered one of the two small maximum security prisons in Michigan's upper peninsula for the purpose. Others are also interested, like the town of Hardin, Montana whose city council voted unanimously to welcome GITMO prisoners to their brand new maximum security prison which remains unoccupied after three years of disputes with state authorities.