At his news conference Tuesday, President Barack Obama made a powerful plea for ending the humanitarian and diplomatic disaster created by the continued detention of more than 160 prisoners at Guantanamo Bay, more than 100 of whom are engaged in a hunger strike that necessitated the dispatch of an emergency medical team. The problem is that Obama has contributed to the crisis by acquiescing in congressional obstruction of his promise to close the facility.

It has been more than four years since the newly inaugurated president issued an executive order promising “promptly to close detention facilities at Guantanamo.” Yet the prison remains open (though its population has dwindled from a high of nearly 800 inmates in 2005).

Of those remaining, about half have been cleared for release but continue to be detained because of congressional opposition to their repatriation to Yemen and other countries whose authorities might not be able to prevent them from engaging in terrorism.

Congress also has used its authority to prevent Obama from transferring detainees to the U.S. mainland, a factor in the decision to try Khalid Shaikh Mohammed and other alleged 9/11 conspirators before a military commission rather than in civilian courts.

But Congress isn’t entirely to blame.

Before Obama’s news conference, Sen. Dianne Feinstein, D-Calif., had urged the administration to renew its efforts to transfer from Guantanamo the 86 inmates cleared for release three years ago by an interagency task force. Obama should do so, ideally with congressional cooperation but unilaterally if necessary.

Guantanamo is a stain on this nation’s reputation, not because of where it is located but because the men held captive there are languishing in a legal limbo that would be just as hopeless if they were transplanted to American soil.

Notwithstanding Obama’s comments about the un-American nature of indefinite detention, more than 40 inmates are being held without the prospect of even a military trial. As he “re-engages” with Congress, Obama should also reconsider his own decision to deny those detainees their day in court.

— Los Angeles Times, May 1