Decolonization actually boosted slavery. As foreign powers withdrew from the colonies, people were enslaved by their own countrymen. And we see it in Africa, we see it in Asia.

It is not possible to starve an organised terrorist group because it is number one a state, so it levies taxation inside the territory that is controlled by Islamic State. But also the activity, for example the smuggling of oil, is taking place in an area which is a war zone. So of course people will buy that oil because they don't have any alternative. So even if we wanted to stop that kind of trade, it will be very, very difficult to do that.

Decolonization actually boosted slavery. As foreign powers withdrew from the colonies, people were enslaved by their own countrymen. And we see it in Africa, we see it in Asia.

Europe has been in the grip of a very serious economic crisis for few years, so there have been major cuts to anti-terrorist funding, to intelligence funding. So we do not have the manpower to carry on this kind of monitoring.

Terrorism is actually a very expensive business.

Well, I think here there is some money gathered, especially in Europe, through the web, through connection to a network. I mean, imagine that in Brussels there is only one person, one single person, which is monitoring the traffic that goes on on the internet for the jihadist groups. In Strasbourg there are two people. So I mean you can imagine how easy it is to raise money through the net.

So I think if we want to turn the table around, more than thinking about how can we starve the Islamic State in terms of money, we should think about how can we maximise the amount of resources that we have in order to secure ourselves. For us, instead of bombing so much, which is extremely expensive, perhaps, you know, we should use some of that money in order to protect ourselves.