> Russia are not harboring him because he's not in Russia, he's in an international transit lounge and therefore not actually in any country.
That's a widespread myth. Russia owns, and exercises control over, the transit area. If someone inside the transit area is wanted on a Russian arrest warrant (or whatever their equivalent is), Russian authorities will go in and get them.
All a transit area really is is a small section of a country that you are allowed to enter without a visa for that country, provided that you are simply passing through. There's nothing otherwise special about them.
It's a myth (I agree) that Russia is exploiting. Countries claim their "transit zones" aren't their soil when it suits them, and don't when it doesn't.
That's a widespread myth. Russia owns, and exercises control over, the transit area. If someone inside the transit area is wanted on a Russian arrest warrant (or whatever their equivalent is), Russian authorities will go in and get them.
All a transit area really is is a small section of a country that you are allowed to enter without a visa for that country, provided that you are simply passing through. There's nothing otherwise special about them.