Exactly one month after Qin Gang disappeared from public view, on Tuesday, his removal and his successor was announced in Chinese state media. No explanation was given. And, every summer, Antarctic ice sheets recede as they melt, and every winter they regrow when the temperature drops. But recent observations and data show the ice is not regrowing. Also, researchers believe that the H5N1 virus known as avian flu may have killed millions of wild birds globally as the outbreak ravages South America. Plus, trying to prevent violence in Sudan with old-fashioned detective work.