Detainee's that refuse meals are required to receive their nutrients in liquid form. They have the option to drink this themselves. When they refuse, they are put in the feeding chair which restrains their arms, legs, and waist. It does not restrain a detainees head whatsoever.
When a detainee refuses to drink the liquid themselves, and refuses to go to the restraint chair themselves, they're carried to the chair by a Forced Cell Extraction team. ERF is a term that the detainee's created themselves. There are 6 guards, not 8, and it is for the safety of the detainee, as there is one guard to handle each body part (2 legs, 2 arms, head), and then one at the door to ensure that the detainee does not escape. Every FCE is video taped to ensure that safe and humane practices are being followed.
They do this for this exact reason. Publicity. We wont send them back to Yemen because we don't want their heads to be severed by their Government. No one wants this place to be open. Don't be foolish, America. Don't be gullible, America. We are still the good guys.