EPA more harm then good

Is the EPA doing more harm then good? I am not sure when you read articles like this one. http://www.americanthinker.com/2012/06/epas_unethical_air_pollution_experiments.html Or articles about them forcing people out of their homes because of being in a water shed. I don't get it. They have too much power and they are a big part of why our economy is struggling. I really believe they are now another political entity doing what they do. Striving for more power and control. The people and the economy is struggling under the current weight of the government. We need less of it. Is the road to hell paved with good intentions? I guess they started out with good intentions. Just my opinion...