<p>SACRAMENTO, Calif. (AP) -- A peace activist pleaded guilty Wednesday to tampering with high-voltage power line towers in what he has said was an effort to draw attention to lax security for the nation's energy infrastructure.</p>
<p>Michael Devlyn Poulin, 62, of Spokane, Wash., had admitted damaging or attempting to damage more than 20 towers last month in California, Idaho, Oregon and Washington. Bolts were loosened or removed from the legs of the steel towers.</p>
