Bin Laden's extremist group had less than a hundred members in September 2001. Today it's a transnational terror organization with 40,000 fighters across the Middle East, Africa and beyond.
Australian society is made up of people from different backgrounds and faiths. Teaching school children about religious diversity and traditions makes them more tolerant of religious minorities.
Many teachers believe that fundamentalists are not really religious, but have just misinterpreted their holy books.
The build-up of foreign armed forces does not bode well for the citizens of Niger.
Fed by colonialism, civil war and online hate speech, Buddhist extremism in Sri Lanka has been on the march for decades.
The latest wave of terrorism aims to kill as many people as possible, as horrifically as possible, with new tools and methods. That makes fighting back more difficult.