Washington Post - Environmental Protection Agency Administrator Stephen L. Johnson is doing his best Road Runner impersonation as he is pursued relentlessly by the Senate Environment and Public Works chairman, Sen. Barbara Boxer (D-Calif.). Boxer has been after Johnson since March to come to the Hill to answer a few friendly questions about his policies on the Clean Air Act and global warming.

Each time the wily chairwoman thought she had Johnson in her grasp, his schedule was absolutely jammed, he couldn't make it, busy, busy, on the road, even wandering about in Australia.

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