JACKSONVILLE, Fla. — Behind huge interceptions early and late, No. 21 Northwestern beat Mississippi State 34-20 in the Gator Bowl on Tuesday and snapped college football’s longest postseason losing streak.The Wildcats (10-3) won their first bowl game since the 1949 Rose Bowl 20-14 win over California, snapping a nine-game losing streak that was tied for the longest in NCAA history. They also celebrated double-digit victories for the first time since the 1995 Rose Bowl season.Quentin Williams returned an interception 29 yards for a touchdown on the third play of the game and Nick Vanhoose set up a late touchdown with a 39-yard interception return. Those plays were the difference in a back-and-forth game that featured more interceptions (seven) than touchdowns (six).In between, NU’s two-quarterback system kept the Bulldogs (8-4) off balance most of the day.