mannej, it would hardly be a case of 'anti-Islam hysteria':
http://www.theage.com.au/comment/the-future-of-islam-in-the-hands-of-reformers-20150329-1map1d.html
As a general rule, one doesn't find Christians including Catholics, Buddhists or those of the Jewish faith carrying out terrorist related attacks. The Israelis have to defend their small, advanced, democratic nation from constant attacks. Thankfully Australia supports them in their very difficult task.
Have a casual look at what has and is occurring around the world. Very worrying for all who believe in (admittedly imperfect) Western democracy. As others have pointed out, such episodes on board aircraft are very rare, but nonetheless troubling as we want to be able to trust pilots and co-pilots just as we do train, bus and car drivers.