A prisoner attempts to commit suicide. Is it right to stop them? What if their chosen method is a hunger strike?
Here's the problem: the U.S. military has been force feeding detainees who go on hunger strikes before they become incapacitated:
A Pentagon document setting rules for medical professionals in detainee operations endorses force-feeding hunger strikers, a practice criticized by rights activists, U.S. officials said on Monday.(...) The Pentagon said in a statement the new document "reaffirms the policy to prevent injury or loss of life of hunger strikers by involuntarily feeding those at serious risk of injury or death, as approved by the detention facility commanding officer or designated senior officer."
(...) Human rights activists have said U.S. medical personnel have been complicit in detainee abuse, and have denounced force-feeding of prisoners as a violation of international codes of medical ethics.
(...) Writing in March in the British medical journal The Lancet, 263 doctors from seven countries called on the United States to stop force-feeding detainees and using restraint chairs.

