Law enforcement agencies in Riverside County and across the nation were warned today of a "heightened threat environment" still percolating from the recent change of presidential administrations that could lead to acts of domestic terrorism by extremists.The U.S. Department of Homeland Security issued a National Terrorism Advisory System Bulletin, warning that the increased threat of potential violence could persist for several weeks."Information suggests that some ideologically motivated violent extremists with objections to the exercise of governmental authority and the presidential transition, as well as other perceived grievances fueled by false narratives, could continue to mobilize to incite or commit violence," according to the bulletin.The bulletin did not cite any spec
