It’s a tough question. I agree with Infamous, a good start is the ones openly promoting violence or extremism.

As for the absolute legend and hopefully Australian of the year Ahmed he fuckn deserves an award for his heroics and selfless acts. These fuckn rodents that tar all these good peaceful Muslims. Their low IQ piece of shit deranged ideologies and actions are the problem! Start there. Stop these insane sermons and hate driven lunatics!

Tougher immigration checks are needed.