Alot of people have said/complained that Dean wasn't scary when he tortured Alistair. I agree, but I don't think he was meant to be scary -- he was DEAD. Dead eyes, dead soul, dead inside.

I thought him to be cold and unfeeling. Scary, no ----- but his eyes were like a sharks -- dead -- no emotion showing.

I think that sums up Dean right now -- there's just nothing left. You can only dump so much on one person.