The EPA Proposes Tighter Smog Rules

Ozone is one of the most dangerous pollutants in emissions from power plants and motor vehicles, one of the elements that cause health effects, up to and including death. The Obama Environmental Protection Agency has proposed much tougher rules against smog than those set by the Bush Administration. If the EPA's new regulations are implemented, state and local officials will have tough decisions to make. Juliet Eilperin reports on the environment for the Washington Post.