FBI warns explosives at state capitol protests around Inauguration Day pose 'substantial' threat: report

Authorities are warning of the "substantial" risk that explosives will be among the "tactics" used during protests before and during the Jan. 20 inauguration of President-elect Joe Biden, piling on to a previous memo urging law enforcement to be prepared for armed demonstrations in all 50 state capitols in the coming days, according to a recent report.