The effectiveness of the changes to the ADF's role in counter-terrorism operations will depend heavily on the willingness of state police to accept military advice and assistance.
Terrorism has resulted in higher security surcharges at ports and airports.
Caron Firouz
The effects of terrorism in one country spill over across national borders to reduce the trade of other nations. This reduction in trade is long lived and may make it harder to combat terrorism.
Tributes and messages to the victims of the Manchester Arena suicide attack on May 22, 2017.
AAP/Terry Waller
Professor of Economics, Department of Economics, Deakin Business School and Alfred Deakin Institute for Citizenship and Globalisation, Deakin University