Australia election: Candidates focus on asylum

With just three weeks until the Australian general election, the candidates appear to be attempting to outdo each other on who will be toughest on immigration.

Opposition leader Tony Abbott said he would appoint a military commander to lead operations to tackle people smugglers and asylum boats.

Kevin Rudd unveiled a plan last month to send boat arrivals to Papua New Guinea, where those found to be genuine refugees would be resettled.

Jon Donnison reports from Sydney.