Campus under siege as Hong Kong police battle protesters

Police tightened their siege of a university campus where hundreds of protesters remained trapped overnight Tuesday in the latest dramatic episode in months of protests against growing Chinese control over the semi-autonomous city.In yet another escalation for the movement, protests raged across other parts of the city, fueled by palpable public anger over the police blockade of Hong Kong Polytechnic University and the desire to help the students stuck inside.Now in its fifth month, the Hong Kon