Re: Fringe 4x19 - "Letters of Transit" (Live Commentary, Spoilers)
If I understand correctly, whatever Walter's plan is, it only requires Bell's hand, not Bell himself. They were running out of time, so they rescued Peter, and cut off Bell's hand. It was played to make you think they had rescued Bell.
If I'd spent my whole life learning how to play chess better than everyone else in the world, I could have been the world chess champion.
- Richard "Richie" Richard