Leopold (left) and Johnson. The Jason Leopold sock puppet scandal continues to expand as Seixon, the blogger at the center of the scandal has received a death threat and a threatening email telling him to stop exposing the nutjobs pushing the Valerie Plame scandal.Since I last updated NB readers on this story (you really need the post to understand this one), Leopold or a minion posted more of Sexion's personal information as well as his parents' address and his mother's name late night on his blog and at Ace of Spades, ensuring it would remain overnight.Sexion then received an...