AbdulMutallab pleads not guilty to new charges . New conspiracy and possession charges are filed against AbdulMutallab . Score: 6 The incident occurred on a plane coming into Detroit last Christmas .
AbdulMutallab pleads not guilty to new charges . New conspiracy and possession charges are filed against AbdulMutallab . He is accused of trying to set off an explosive device aboard a plane . The incident occurred on a plane coming into Detroit last Christmas .