Australia has implemented some of the world's boldest measures to reduce smoking. There's just one problem: they seem to have stopped working.

A global study out today has found that after decades of declining, Australia's rate of smoking has plateaued, and even increased slightly among women. There are almost 3 million smokers in Australia and between them they puff on 21 billion -- yes, billion -- cigarettes a year.

That's the most recent data available, and it goes up to the end of 2012. As to whether the world's first laws mandating the plain packaging of cigarettes have worked (they started in December 2012), those who have the data won't release it. It's a public policy secret. More on that later.