>> stefano nyirenda ( translated ): when you want to turn, you have to do it together. >> cooper: right next to each other? how do you sleep? >> nyirenda ( translated ): we just sleep. we have no choice. >> cooper: stefano is in for robbery, and he is h.i.v.- positive, as are around a quarter of zomba's inmates. they occasionally get visits from an italian nun, sister anna tommasi, who runs a small legal aid to prisoners. if you were writing-- a postcard to somebody, who had never been to this prison, how would you describe it here? >> sister anna tommasi: oh. i think it's impossible for somebody outside to get-- there are no words which could explain, because-- >> cooper: what life is like here? >> sister tommasi: yes. i think, before you came, three days ago, if i had written anything, would-- do you think you could have had a clue? >> cooper: no. >> sister tommasi: sometimes, i call it, it's the waiting room of hell. >> cooper: ( laughs ) that's what this prisois sometimes? >> sister tommasi: yeah. >> cooper: if it is the waiting room of hell, salvation for chikondi salanje comes fro