“The area around Davies Symphony Hall in San Francisco was cleared for about two hours [Wednesday] while the city police department’s bomb squad investigated an odd- and suspicious-looking device on the sidewalk outside the building. The device — a yellow plastic tub about three feet long and one foot tall, with some clear liquid at the bottom and what appeared to be a bottle of bleach inside with a wire attached to a red blinking light — was determined to be harmless. There were no injuries or property damage.”