It's an old argument with a new twist. Which is more important: economics or the environment? As new technologies have emerged, some people criticize the Minnesota Pollution Control Agency for favoring the economics of new ventures, and ignoring the serious environmental questions posed by emerging industries. All this week we will look at specific cases ... including animal feedlots, expanding potato farms and a new ethanol plant. In some cases, the concerns center around how a variety of state and federal agencies work together, or do not, to protect our environmental resources. We begin our series of reports, with an issue that's received a lot of attention recently. Opponents of large livestock feedlots say the Minnesota Pollution Control Agency has ignored health problems created by those operations. They're especially concerned with air pollution. This spring for the first time the MPCA documented hydrogen sulfide emissions from a hog farm which violated state law. Opponents call it vindication, but wonder if the MPCA will take vigorous action to bring the feedlot into compliance. Mainstreet Radio's Mark Steil reports: