Time is running out for 25-year-old Australian drug trafficker Nguyen Tuong Van, who is due to be executed at Singapore's Changi prison on Friday. His death sentence has sparked widespread criticism in Australia. The Canberra government has repeatedly pleaded for clemency, as have lawyers, trade unions and church groups. But Singapore remains unmoved, and insists the hanging will go ahead as planned. "People have been praying for a change of heart," said Father Peter Norden, a friend of Kim Nguyen, the condemned man's mother. "They want the Singapore government to change its heart from one of stone to a heart...