Prosecutors investigating the investigative news program PD Notebook try to raid MBC headquarters in Seoul`s Yeouido district for the second time but fail. Three prosecutors and 40 investigators went to raid the building at 9:25 a.m. but they failed to enter the building because some 100 MBC unionized workers blocked the entrance. After an hour-long confrontation with the workers, prosecutors gave up executing their arrest warrant at 10:45 a.m. and returned to their offices. Several brawls took place but no one was injured.