I thought some of you would find the following article, which was published in Nature recently, interesting:<div><br></div><div><a href="http://www.nature.com/nature/journal/v482/n7386/full/nature10836.html?WT.ec_id=NATURE-20120223">http://www.nature.com/nature/journal/v482/n7386/full/nature10836.html?WT.ec_id=NATURE-20120223</a></div>
<div><br></div><div>Best,</div><div><br></div><div>Christopher</div>