Welcome to the Inquiry, I'm Charmaine Cosia, each week one question, four experts and an answer.

It's a May Saturday afternoon in the Afghan capital of Kabul just a few days before the end of Ramadan.

Students from the Saeed al-Shadar girl school were starting to leave for the day.

All of a sudden, without any warning, a car bomb went off.

Panic students rushed to get away from the scene, then a second bomb went off followed by a third.

Photige on local TV channels showed roads covered in blood, with books, school bags and shoes scattered

around. At least 85 people were killed. Most of them young girls.

The Afghan government blamed the Taliban, the hard-line Islamist movement that is for

to long civil war in Afghanistan. The Taliban, although they have previously targeted the

educations of girls, denied it and blamed the Islamic State group. Things were supposed to be

getting better in this war torn country. Earlier this year, President Joe Biden announced US

troops were going to be removed by September, but what will happen after they've gone?

So this week we're asking, will the Taliban rule Afghanistan again?

Part 1. The cost of war. 9-11 was a catastrophic incident for the United States.

Mustak Rahim has spent the past 16 years based in Afghanistan. He works on peace, conflict and

reconciliation issues. President Biden's deadline for removing the remaining 2,500 troops from

Afghanistan is September the 11th. That's significant because of what happened on that date,

20 years ago, in America. The country was attacked by the international terrorist groups.

Al Qaeda hijacked four passenger planes. Two were flown into the Twin Towers of New York's

World Trade Center, one hit the Pentagon building near Washington DC, and the other crashed into a

field in Pennsylvania. Nearly 3,000 people were killed. The group that claimed the responsibility

for the incident they were living in Afghanistan. Americans wanted those culprits or the ones who

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