According to WKBW-TV, Police, fire and HAZ-MAT are on the scene at the Buffalo News building in downtown Buffalo.  A suspicious white powder was found in an envelope late Monday morning. The building was put on lockdown, but it should re-open soon.  The Buffalo News says it is following all emergency procedures.  The building is near HARBORCENTER, First Niagara Center, and the Marriott Hotel at Canalside.