From the NY Times although finding it is a challenge since its on page A18;
President Obama told human rights advocates at the White House on Wednesday that he was mulling the need for a "preventive detention" system that would establish a legal basis for the United States to incarcerate terrorism suspects who are deemed a threat to national security but cannot be tried, two participants in the private session said.
The two participants, outsiders who spoke on the condition of anonymity because the session was intended to be off the record, said they left the meeting dismayed.
"He was almost ruminating over the need for statutory change to the laws so that we can deal with individuals who we can't charge and detain," one participant said. "We've known this is on the horizon for many years, but we were able to hold it off with George Bush. The idea that we might find ourselves fighting with the Obama administration over these powers is really stunning."
The other participant said Mr. Obama did not seem to be thinking about preventive detention for terrorism suspects now held at Guantanamo Bay, but rather for those captured in the future, in settings other than a legitimate battlefield like Afghanistan