Summary: <p>The Jefferson Exchange: March 1, 2013, Hour 2:</p><p><b> <span class="headlinetext">Petroglyphs Stolen</span> </b><br><br> It was the kind of vandalism we've seen in other countries, but might not expect in America: petroglyphs thousands of years old were hacked off canyon walls in California last fall, in what federal agents called the worst act of vandalism ever seen on any BLM land in the country. An archaeologist and a <a href="http://www.bishoppaiutetribe.com/historicpreservation.html" target="_blank"><strong>tribal representative</strong></a> will talk about the significance of the works, and the efforts to solve their theft and vandalism. </p>
