Minnesota's three major U.S. Senate candidates tackled social and fiscal issues -- and their own campaign spending and attack ads -- Wednesday in their first televised debate. N-B-C's Tim Russert helped moderate the debate, which took place in Minneapolis before an audience convened by the Minnesota Meeting organization. D-F-Ler Mark Dayton and Independence Party candidate James Gibson were often in agreement on social issues, while Dayton and Republican Rod Grams were predictably at odds, particularly when debating one another's campaign tactics. Minnesota Public Radio's Amy Radil reports.