We need to ensure we do not sacrifice our liberty in the pursuit of a goal that is at best ineffective and at worst counterproductive.
The U.S. is considering expanding a ban it imposed in March on several Middle Eastern countries to all flights from Europe. A close look suggests the meager benefits just aren't worth the high costs.
The ban on electronic devices in cabin luggage overlooks the airports that would be least likely to detect a bomb.
That Australia has not suffered a successful terrorist attack on its aviation industry is testament to the resilience of our security system.
As many as one in 50 people are face blind, meaning they can't tell one face from another.
The deadly terror attack in Brussels raises the issue of safety and security at airports. But this is more about our approach to risk in any areas where people are known to gather.
Legislative and managerial weaknesses that exist in Australian airports mean we should not be complacent.