Law enforcement personnel stand guard outside the US Capitol, blocking off the protesters.(9News) Police and National Guard are out in force to surround the US Capitol building, but crowds do not appear to have dispersed. "Traitors get the rope," one was filmed shouting at police. "Wait until we come back with rifles, motherf--er. You think that's an idle threat?" The Capitol's sergeant-at-arms has said the building itself is now secure after the Metropolitan Police and National Guard cleared the building of protesters. The entire DC National Guard has been mobilised to enforce the 12-hour long curfew, the New York Times has reported.