This piece was made possible by Sony Pictures.
We talked to investigative journalist Nicky Hager who dug through the Panama Papers to discover how Mossack Fonseca operated in NZ.
Anyone can now trawl through the names of more than 200,000 offshore companies, all of which were incorporated in far-flung tax havens.
Sigmundur David Gunnlaugsson may have resigned following the Panama Papers scandal, but that won't make any difference in the grand scheme of things.
Big companies such as Google and Facebook will have to state if their profits pass through tax havens — but the problem is EU states have no common view of what a tax haven is.
Thousands chanted "I pay taxes, why don't you?", which sums up exactly why Cameron's shonky dealings have caught the public imagination.
This weekend David Cameron didn't resign, North Korea sounded excited about having missile sights set on the US and more.
To do it right, the world would have to go after one notorious bastion of tax secrecy: the United States of America.
Ken Silverstein spent 2014 unearthing how criminals and oligarchs hide their money, but his story got ignored.
Fans might argue he knew what was coming, and that no one listened.
The massive data leak has politicians around the world on the defensive. But how will the US government react?
It's not just the prime minister — the leak has also linked the country's finance and interior ministers and several other officials to offshore shell companies.