WASHINGTON In a dramatic reversal, President Barack Obama on Friday scrubbed a clean-air regulation that aimed to reduce health-threatening smog, yielding to bitterly protesting businesses and congressional Republicans who complained the rule would kill jobs in America's ailing economy. Withdrawal of the proposed regulation marked the latest in a string of retreats by the president in the face of GOP opposition, and it drew quick criticism from liberals. Environmentalists, a key Obama constituency, accused him of caving to corporate polluters, and the American Lung Association threatened to restart the legal action it had begun against rules proposed by President George W. Bush. The White House has been under heavy pressure from GOP lawmakers and major industries, which have slammed the stricter standard as an unnecessary jobs killer. The Environmental Protection Agency, whose scientific advisers favored the tighter limits, had predicted the proposed change would cost up to $90 billion a year, making it one of the most expensive environmental regulations ever imposed in the U.S. Obama Halts EPA Regulation On Smog Standards Obama DID Something I like!! the air cleaner now then it has been in 15 years!!!!!!