Accountability?

I just noticed this headline:

US sacks another Navy commander for embarrassing detainment in Iranian waters

https://www.rt.com/usa/348321-navy-officer-iran-detention/

Which struck me as odd.  A navy commander gets sacked for wandering into Iranian waters yet NOT ONE person responsible for protecting the USA on 9 11 got so much as a slap on the wrist?

How does that work?  Did someone suddenly decide accountability was back in style?

It makes one wonder if the guys who failed to defend the USA on 9 11 were actually following orders - because not one of them was disciplined in any way for their 'performance' on 9 11.

But coincidentally, the DOD, the CIA and Halliburton made out like bandits in the aftermath.

And some of the 9 11 insider trades on Wall street traced back to members of the Bush clan. (See this link: http://www.foreignpolicyjournal.com/2010/11/18/evidence-for-informed-trading-on-the-attacks-of-september-11/ )

I guess 9 11 can only be explained by an elaborate coincidence theory...