    Sentence’tt [Nv inspectors fourtid traces ‘ef highly  enriched:|. weapens-gradé .uranium at. ah Iranian  nuclear facility ;-a report..by the. U.N. Auclear  agency says    Sentence’. 2: United :Nation’. inspectors have:  discovered: trace’ of highly eririched uraniim néar  an dranian fuclear facility , heightening worriés that  the country may.have a.secret-nuclear weapons:  prograris