The House has passed a bill to prevent the Environmental Protection Agency from cracking down on the dust kicked up by farmers, even though the agency says it wasn't planning any rules like that. The idea that farm dust could be regulated as pollution has proved a popular topic on the campaign trail, riding a wave of anti-regulation sentiment. Republicans and some Democrats have told farm-state audiences that the EPA is considering a crackdown on farms. The agency issued a public statement in October calling that a "myth." Environmental Protection Agency officials have said repeatedly that they won't propose new regulations to limit dust stirred up by farm equipment. But sponsors say the bill will give more certainty to the agriculture industry and ward off potential lawsuits over the dust.