US Deputy Defense Secretary Paul Wolfowitz, a driving force behind America’s presence in Iraq, was starting a four-day tour of the strife-torn country as attacks cost the lives of a US soldier and an Iraqi civilian. The hawkish Wolfowitz’s visit comes as US commanders warn they are facing a tougher fight on the ground and the US-sponsored interim Governing Council demands greater power from the coalition. US officials were not releasing details of Wolfowitz’s trip, his second to the country. On the ground, a US soldier was shot dead early Friday guarding a grain silo in the northern Iraqi city of Mosul, raising to 106 the number of US troops killed since major hostilities were declared over on May 1. Full Story