SYDNEY: Global terror attacks have cast a pall over 2016 but Australia was Saturday set to defy the threats and ring in the New Year with bumper crowds gathering to watch a firework extravaganza on Sydney’s glittering harbour. 2016 has seen repeated bloodshed, most recently a deadly truck attack at a Berlin Christmas market, a similar incident on Bastille Day in France that killed 86, and atrocities in Turkey and the Middle East.