United States June 1 , San Francisco: Seminar on the Tiananmen Massacre , 2-5pm, Dr. Sun Yat-Sen Memorial Hall (旧金山国父纪念馆), 2121, 836 Stockton Street, 94108. June 1 , San Francisco; Candlelight Vigil , 7pm, Chinatown Portsmouth Square (旧金山中国城花园角). June 1 , Washington D.C.: Candlelight Vigil, 6:30-9:...