Maybe this has something to do with "National Security Risk"?<p>"Students were evacuated from Millennial Tech Magnet Middle School in the Chollas View neighborhood Friday afternoon after an 11-year-old student brought a personal science project that he had been making at home to school ..."
<a href="http://www.signonsandiego.com/news/2010/jan/15/students-evacuated-school-chollas-view/" rel="nofollow">http://www.signonsandiego.com/news/2010/jan/15/students-evac...</a><p>Found via <a href="http://news.ycombinator.com/item?id=1056904" rel="nofollow">http://news.ycombinator.com/item?id=1056904</a>