In hindsight it was probably Putin that organized 9/11 just like he organized the Russian apartment bombings to start the 2nd Chechen war.
NATO didn't realize what asynchronous warfare was until Iraq/Syria/Ukraine and Putin couldn't clean out 'terrorists' from Soichi until NATO had the same enemy.
The Bin Laden tapes always seemed ridiculous, straight out of Nemtsov's playbook not to mention all those people involved with the investigation or simply witnesses that died in accidents.