The U.S. Capitol was on high alert Thursday amid concerns over a militia group's possible plot to breach the building, but no incidents have yet been reported.Police said they obtained intelligence about a possible plan on Thursday to breach the Capitol, the scene of election-related violence about two months earlier.The plot was linked to a right-wing conspiracy theory promoted and circulated by QAnon adherents that former President Donald Trump will return to power on the same day.The date, March 4, was the original inauguration day for presidents before 1933.Related coverage:READ FULL ARTICLE