Chicago linebacker D.J. Williams forced a Roethlisberger fumble to set up another score as Chicago's bid for a 3-0 start began with a flourish.
The score marked the second straight week and the 10th time since the start of the 2012 season the Bears returned an interception for a touchdown.
Still, the half belonged to the Bears. Chicago needed a pair of fourth-quarter comebacks to win their first two games. There would be no slow start this time after sprinting to a 17-0 lead that had some of the capacity crowd at Heinz Field already heading to the exits less than 15 minutes into the game.
Copyright 2013 by The Associated Press