he returned to mauritania a national hero.e angry about what the u.s., one of their allies, did to slahi, but are also proud that he's come home with his dignity intact. he's been embraced by a large extended family, including some members who weren't yet born when he disappeared. he's been a new discovery. >> slahi: yeah, many, among many. >> williams: there have also been losses. it's been more than 15 years since he got in his car and headed to the police station on his way to guantanamo. slahi's mother said goodbye that night, but she wasn't there to welcome him home. she passed away in 2013. and you didn't see your mom again? >> slahi: no, i never see her again. it was the last time. it's seared in my memory, that picture frozen in time. >> williams: if you had to sum up the last 15 years of your life, what would you say? >> slahi: pain and suffering is part of growing up, and i grew up. >> williams: mohamedou slahi says the u.s. government is holding several other books he wrote while in prison: two novels, and a self-he