The whole Al Qaida thing is murky with CIA engineering and scapegoating. Maybe I sound like a conspiracy theorist, I don't know. They were a pretty convenient foil for us to invade a whole bunch of countries that we had no business invading.
I have an American friend here in Groningen ( NL ) who has been living here for about 30 years now.
In the eighties he was stationed in Germany. Due to the thawing relationship between the US and the USSR a meet and greet between Russian and American soldiers was organised. He discovered they were ordinary guys, not monsters. They talked intelligence : both groups had knowledge about weapon systems of their enemies.
It opened his eyes, he left the army and stayed in our beautiful city.
The cold war too, was just 'a story line'.