A man walks past a display of newspapers at a newstand in Beijing on July 23, 2009. China’s state-run mainstream media is more tightly controlled than the Internet by the ruling communist government, and newspapers as well as television news and the Internet have all blocked news about a graft probe in Namibia involving a firm linked to the son of President Hu Jintao. Two Namibians and a Chinese national were arrested last week in Namibia as part of a probe into bribery allegations involving Nuc