LOWELL -- Radio personality Christopher Lydon's lucrative and controversial contract with UMass Lowell to broadcast an hourlong radio show will not be renewed when it expires in December, the school's interim chancellor confirmed last night. Interim Chancellor David MacKenzie said the move will not be effective until December, when Lydon's contract expires, but confirmed Lydon was notified that the deal will not be renewed. "It's basically an expensive program that, given our financial situation, doesn't make sense for the university," MacKenzie said. "I just felt we had other things that were higher on the priority list." Lydon, a renowned former...