Minnesota Public Radio is locked in a dispute with city planners in its hometown of St. Paul over a proposed light-rail line that will run by the network’s headquarters. MPR says on its website that it fears the line “will cause irreparable harm” to its headquarters with excessive noise and vibrations near recording studios. If the city can’t provide a mitigation plan by March 1 that convinces MPR, the network said this week, the line should be moved. The city’s Metropolitan Council argues back on its website: “MPR should get on board with the Metropolitan Council, St. Paul, Minneapolis, Ramsey County and Hennepin County to help make this transit line a reality — not jeopardize its chances of winning federal funding that is essential for construction,” said planners. More coverage in the St. Paul Pioneer Press.