Many don't think about it anymore imo. They probably never did to begin with. They just believed what they were told and tried to forget about it as quickly as possible. Others have their doubts about the official version, but it hasn't had the impact on how they view world events as it should have. People that really are interested and think beyond that are just a minority. A bigger minority than in the past, but nevertheless just a minority that is dwarfed by a majority that doesn't give a fuck, or doesn't care as much as they should anyway.
If the above wasn't true Bush wouldn't have gotten a huge cheer at the inauguration of Trump. In fact, none of these characters - Bush, Cheney, Rumsfeld, etc would be able to show their faces anywhere anymore. As it is they still are praised as "great Americans" and the public - or much of it, is still eating it up. There would be mass demonstrations against the war of terror. But what we see is ever more demonisation of Muslims.
In short, yes - there are still plenty of people that believe the official story of 9/11, and many that don't believe it, but don't draw any conclusions from that.
