President Barack Obama announced Friday that he was directing the EPA to withdraw a draft regulation that would tighten air quality standards for Ozone due to concerns about costs. In a letter to Speaker of the House John Boehner Tuesday, Obama revealed that the rule under consideration by the Environmental Protection Agency could cost up to $90 billion to implement. Obama said that while he supports the regulation, it will be updated again in 2013, adding, "ultimately, I did not support asking state and local governments to begin implementing a new standard that will soon be reconsidered." The proposed regulation,...