US Capitol security worked against one threat, but vulnerabilities remain against a crowd

US Capitol security worked against one threat, but vulnerabilities remain against a crowd

A gigantic fence still encircles the Capitol after the Jan. 6 attack. In mid-March, security officials eliminated an outer security perimeter that sealed off the Capitol complex and adjacent House and Senate office buildings for blocks around. Authorities maintained the inner fence, protecting just the immediate “square” around the Capitol itself.