Chinese Communist Party chief Hu Jintao has vowed <A HREF="http://www.cnn.com/2007/TECH/internet/01/24/china.internet.hu.reut/index.html">to purify the Internet,</A> state media reported on Wednesday, describing a top-level meeting that discussed ways to master the country's sprawling, unruly online population. Hu made the comments as the ruling party's Politburo