After a six-hour siege of police headquarters overnight, the second such occurrence in a week over the now-suspended extradition bill, security forces drove away protesters and opened up the streets ahead of Thursday’s rush hour. By 7am, roads near the headquarters in Wan Chai that had been blocked during the night, including Arsenal Street at the junction with Lockhart Road, and Harcourt Road in Admiralty, were reopened for traffic. All public bus services affected were restored by 7am and…