DOZENS of motorcycles and cars broke the silence of Semarang at midnight Tuesday. Their drivers and occupants, Indonesian Democratic Party of Struggle (PDI-P) security forces, headed straight to the Marhaenis Hall in Jl. Brigjen Soediarto. Quickly they locked all the doors, switched off all the lights and occupied the building. "We will chase away any leaders trying to get in," said Sugeng, a PDI-P task forcer. "They are traitors of the aspirat