 Vietnam's ruling Communist Party says a national mourning period and a state funeral will be held this week for the party's leader Nguyen Phuong Trang, who died on Friday aged 80. During his time in office, he oversaw a crackdown on corruption. South Korea has stepped up its propaganda broadcasts into North Korea as Pyongyang continues sending balloons carrying rubbish to the south. Our Asia-Pacific regional editor, Mickey Bristow, reports on the tit-for-tat campaigns.