Hello and welcome to the intelligence from The Economist.

I'm your host, Jason Palmer.

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

This week, new restrictions will clamp down on the makers of internet porn, but they're not

being imposed by a government.

It's credit card and financial companies that are increasingly and reluctantly plugging the

gaps left by regulators.

And if you haven't heard of Squid Game yet, you soon will.

The series Wild Success shows that Netflix can give local productions a global audience,

how resonant the topic of social inequality is,

and just how much cultural cachet South Korea has.

But first... A suicide bomber struck on Friday at a Shia mosque in the northern Afghan city of Kunduz.

The attack killed more than 50 people, making it the deadliest since American forces withdrew from the country in August.

Islamic State took responsibility for the atrocity, suggesting that the Taliban's grip

on power isn't as strong as it might have hoped.

That power vacuum poses real problems for lots of interested parties, not least neighboring

Pakistan.

Its Prime Minister Imran Khan said instability across the border worried him.

That too will impact Pakistan.

It will mean an unstable, a chaotic Afghanistan, ideal place for terrorists, and that is our worry.

Pakistan's international relations are complicated.

It partnered with America for much of the past two decades,

...