^this.

The most common, and widely used excuse for not transferring detainees to U.S. prisons (in the government's own words) has been and continues to be the fear of radicalization of prisoners.

Unfortunately for the government, that idea has been shot down time after time not only by academics in the field of corrections, but even practitioners within the same field.

Their argument falls along the same lines of the "think of the children" people. They instill a irrational fear into the public (which is aided by sensationalized media) to sway public opinion in their favor.