Was there a systematic campaign of rape by forces loyal to Libyan leader Colonel Muammar Gaddafi during the battle for Misrata?
Two young prisoners in a detention centre in the city tell me the answer is almost certainly “yes”, and that they took part in the gang-rape of four women.
The men, aged 17 and 21, are sitting on a sofa – heads bowed – in the same filthy, bloodstained army fatigues they were captured in two weeks ago.
They are obviously nervous, but speak clearly.