We’ve all had those annoying cold calls from telemarketers trying to sell us something, and wondered “how on earth did you get my details?” When it started happening to data scientist Priya Dev, who diligently tries to protect her own data privacy, she decided to find out.

Her investigation led her all the way back to 2014 and into the labyrinthine world of “data brokers”. These companies collect our personal information from organisations such as energy retailers, telcos, insurance providers and even political parties – and then sell it for profit. Even though they almost always do this without obtaining our explicit consent, the practice is legal.

This would still be the case under the federal government’s newly proposed privacy reforms, which Priya says are a small step in the right direction, rather than the giant leap we need.

Drew Rooke

Assistant Science + Technology Editor

How did they get my data? I uncovered the hidden web of networks behind telemarketers

Priya Dev, Australian National University

After receiving dozens of unwanted calls from telemarketers, I started to investigate.

Why isn’t dental included in Medicare? It’s time to change this – here’s how

Peter Breadon, Grattan Institute; Kate Griffiths, Grattan Institute

More Australians delay or skip dental care because of cost than their peers in most wealthy countries. Adding dental to Medicare wouldn’t be easy, but it would vastly improve Australians’ health.

With all these defamation lawsuits, what ever happened to free speech?

Brendan Clift, The University of Melbourne

In recent years, Australia has been dubbed the “defamation capital of the world”. High-profile legal stoushes in the headlines seem to back this up. How can we reconcile this with freedom of speech?

Do footy’s best and fairest awards achieve what they claim?

Hunter Fujak, Deakin University; Joshua McLeod, Deakin University

It’s AFL and NRL award season and analysis suggests the Brownlow Medal and Dally M voting systems are far from perfect.

‘Breakthrough discovery’: Indigenous Rangers in outback WA find up to 50 night parrots – one of Australia’s most elusive birds

Rachel Paltridge, The University of Western Australia; Clifford Sunfly, Indigenous Knowledge; Nicholas Leseberg, The University of Queensland

Urgent action is now needed to protect these vulnerable populations and ensure the night parrot doesn’t become extinct.

Why are the violins the biggest section in the orchestra?

Laura Case, University of Sydney

Violins are the largest section of the orchestra, sitting front and centre of the stage performing memorable melodies. But how did the modern orchestra get this set up?

Basic service provider or mini democracy? Why NZ needs to decide what it wants from local government

Jeffrey McNeill, Te Kunenga ki Pūrehuroa – Massey University

If New Zealand wants to see real improvement in community-level services and infrastructure, we need to finally make a decision on the true purpose of regional, city and district councils.

Elegantly and chaotically, Rodney Hall falls into the vortex of history

Tony Hughes-d'Aeth, The University of Western Australia

We are accustomed to regarding history as linear, punctuated by moments, events and personages. What if this is not what is happening?

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