'We're catching every possible nutrient' - clean farmers sick of 'dirty dairy' tag

Northland dairy farmers who've spent big money to clean up their act say they're still getting the dirty dairy tag and they're fed up with it. The government's looking at tough new rules to protect rivers, that could force some farmers to reduce cow numbers. RNZ Northland reporter Lois Williams hit the road to find out what dairy farmers in her region think about that.