Calls for South Korean president Park Geun-Hye to quit are growing. Mrs Park is accused of being part of a shadowy cult to which she passed classified information forcing major conglomerates to funnel billions of won to foundations run by her friend and former aide. The allegations have come at a bad time for Asia's fourth largest economy which is trying to reassure investors that growth remains on track following a slump in exports. Robert Van Egghen reports.
