are showing themselves to be skillful tacticians this week they moved away from flash mob demos to occupying universities and blocking the city's key traffic arteries the polytechnic is the last university held by protesters by barricading themselves in they have succeeded in closing down the city's cross harbor tunnel connecting the mainland and the hong kong island. we want the city to go on strike at the hong kong police technic university we can occupy the cross harbor tunnel so it can help to achieve this goal and we could also block highways and other major roads in the area where the roads are and the hong kong polytechnic university our major roads and they could be blocked to help us achieve the strike. the protesters are trying to quote squeeze the economy and it's working the city is