Citing safety, USC cancels speech by valedictorian who has publicly supported Palestinians2 men exchange gunfire at Flint bus station, leaving 1 in critical conditionVenezuela closes embassy in Ecuador to protest raid on Mexican embassy thereMesmerising charts show world's most and least populated countries over timeGeorgian police fire tear gas to break up protest against soRetired general's testimony links private contractor to Abu Ghraib abusesBrowns QB Deshaun Watson throwing full speed after shoulder surgery, timetable for return unknownKeith McNally strikes again! RazorLottery, gambling bill heads to Alabama legislative conference committee for negotiationsImprisoned drug