Hello and welcome to the Intelligence on Economist Radio.

I'm your host, Jason Palmer.

Every weekday we provide a fresh perspective on the events shaping your world.

For decades, a debate has raged about returning cultural artifacts to the lands they were plundered from.

A generation steeped in that debate has risen through the ranks of museums

and now its curators themselves leading the push for restitution.

And President Donald Trump often claims that social media platforms suppress conservative voices.

So our data team probed Twitter's algorithm by cloning Mr. Trump's account.

For him anyway, far from quieting the right, Twitter makes it louder.

First up though.

Mexico's president, Andres Manuel Lopez Obrador, commonly known as Amlo, swept to power in 2018, promising not just to reduce but to wipe out corruption.

We are going to apply the three main basic principles, not to rob, not to betray the people.

The left wing populist had served a wave of anger against the government of his predecessor, Enrique Pena Nieto, commonly accused of being the most corrupt administration in the country's history.

But Emilio LaZoya, one of the targets of the subsequent graft investigation, was extradited from Spain in July.

Last week, he flipped the script, making his own allegations of corruption.

His testimony in a leaked deposition has rocked Mexico, accusing dozens of politicians, including former president Pena, of bribery involving millions of dollars.

The kinds of allegations that Mr. Pena has denied in the past.

In terms of the people accused here, we are talking about the biggest corruption scandal in Mexican history.

And the man who has set this scandal in motion is Emilio LaZoya.

Richard Enzer is our Mexico City Bureau Chief.

Emilio LaZoya was on the team of Enrique Pena Nieto, Mexico's previous president, during his 2012 election campaign.

He then went on to become the boss of Pemex, Mexico's state-owned oil company.

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