For many Australians, waking up to news - week after week - about yet another antisemitic attack has been confronting. 

Is hatred against Jewish people, in our very own country, more prevalent than we thought? Or are these attacks the work of puppet masters, offshore, who might be pulling the strings behind the scenes, for their own nefarious - and mysterious - reasons?

Today, investigative reporter Nick McKenzie, on how our spy agency, ASIO, is now investigating bikie gangs as it combats antisemitic attacks and plots by hostile nations to harm our national security.

For more:

• ASIO warns bikies, organised crime linked to antisemitism, hostile nations,The Age, Sydney Morning Herald
• Facing our threats, targeting Australia, where there's a will, 60 Minutes