spoke to head of the counter—terrorism policy centre at the australian strategic policy institute, jacintaccessful terrorist attack in australia to date unlike, unfortunately, you in the uk and in europe, but the terror threat alert level as the correspondent described is probable, equivalent to the uk terror threat alert level, and it has been that just under three years. what we have seen in that time is 12 previous mass casualty plots have been stopped by the authorities here. the one this weekend was the 13th. what is more high profile in australia, we have had four successful terrorist attacks, but all have been single actor, low—level terrorist attacks and they have included weapons such as knives or firearms. the most well—known would be the cafe siege two and a half years ago. the terror threat alert level is constant and we heard from authorities today that will be maintained at that probable level. what we are seeing this weekend is the type of attack planned is more sophisticated and complex, involving something like explosive devices. we have not seen that in the current threat