The Vikings can separate themselves a bit from all NFC North challengers with a home win over the Lions and help to put away all the doubt that creeps in for Vikings fans when watching their favorite team in the second halves of games this season. The Vikings start fast and struggle out of the locker room in the second half and then hang on to win . . .  every time. That last fact of being undefeated is great, but the route taken there is slightly unnerving.