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Tensions in Iraq are 'troubling': US general

US Army General Lloyd Austin speaks in the southern Iraqi city of Nasiriyah on December 17, 2011. Sectarian tensions and political discord in Iraq signal a "troubling" trend in the country since US troops withdrew a year ago, Austin warned on Thursday.Sectarian tensions and political discord in Iraq signal a "troubling" trend in the country since US troops withdrew a year ago, a top American general warned on Thursday. Iraq has remained stable but "fragile," said General Lloyd Austin, who was the last US commander in Iraq before all his forces withdrew in December 2011.