WALTER WHITE: We tried to poison you.  We tried to poison you because you’re an insane, degenerate piece of filth and you deserve to die.

Teacher. Husband. Father. Cancer patient. On paper, Walter White (the brillaint Bryan Cranston) is an incredibly sympathetic man who you can’t help but feel sorry for. Season One of AMC’s spectacular Breaking Bad worked hard in establishing its protagonist as an ultimately good guy, someone to root for. He gave up on the opportunity to be a rich scientist, instead working as a high school …