For the second year ASIO DG Mike Burgess has addressed the public with his annual threat assessment. This week we have a look at what the speech contained - from changes to how ASIO describe extremists to the “nest of spies” ASIO recently uncovered - and what this all means to Australia.Not just the contents of the speech, but also the extraordinary new openness DG Burgess is promoting.  And just why are so many countries spying on us these days?