Is there enough information on this though.
I think you have the basic issue here and you could google more about the discrimination laws but I think the arguments could be censorship and freedom of speech.
You could twist it any way you like, methinks.
Here are some topics I suggest some might try doing: The contention is up to you. You can justify the issue any way you like but I suggest looking at both arguments before deciding.
Is Julian Assange a hero?
Should we have stricter radio restrictions? (Refer to the Australian DJs who pranked a nurse into revealing patient information about the Duchess' condition.)
The effectiveness of the plain packaging of cigarettes
Poker machine reforms
Safe and legal access to abortion
Ensuring humane treatment of factory farmed animals
Ending corporate donations & reducing influence of lobbyists
Constitutional recognition of Indigenous people
Protecting the Murray Darling Basin
The fair treatment of refugees and asylum seekers
Stopping harmful coal seam gas mining practices
Protecting Australian native forests
Investment in renewable energy
The "misogynist" attitude of men in politics (refer to Julia Gillard's speech)
(
http://www.getup.org.au/campaigns/generous/vision-2012/vision-2012/)
Hope that helped!
http://education.theage.com.au/cmspage.php?intid=271 -- This has lots of resources as well.