This picture, with a purported quote attributed to Australian Member of Parliamenet, Tanya Plibersek, has been posted on Facebook by the "Patriots Defence League Australia":
The attribution to Tanya Plibersek's 2002 maiden speech is trivially inaccurate, since her maiden speech was in 1998, and doesn't mention any of the keywords "ISIS", "terrorist", or "sovereign" (although it does mention 'freedom', once, in the context of "freedom from victimisation" related to the end of the Great Depression). But is there any evidence that she has said anything on record to this effect?