German Chancellor Angela Merkel is on a business-boosting trip to China, but the visit is being overshadowed by spying allegations involving the United States.<br/> <br />Merkel was asked at a news conference in Beijing about allegations that a German man worked as a double agent for U.S. intelligence.<br/> <br />The man was an employee of Germany's B-N-D foreign intelligence agency and reportedly admitting passing documents to a U.S. contact.<br/> <br />(SOUNDBITE) (German) GERMAN CHANCELLOR MERKEL, SAYING:<br/> <br />"On the question of a German man working as a double agent for U.S. intelligence department, we have already opened an investigation. If the reports are correct it would be a serious case. If the allegations are true, it would be for me a clear contradiction to what I consider to be trustful cooperation between agencies and partners."<br/> <br />Meanwhile Merkel continues to build ties with China. This is her seventh visit since she took office in 2005, and it included a stop in the southwester
