achieving security by increasing competency through more pedagogy while maintaining secrecy

the main reason secrecy has been so extreme the last 100 years is likely because different countries had analyzed that humanity would go through some very dangerous phases: molcular machine cybernetic brains controlling molecular machine clouds 

molecular machine clouds gone rogue could have exterminated all biological life on this planet 

molecular machine clouds that upgraded itself to nano machine clouds and gone rogue could have eaten every planet in this solar system 

now these dangers are not relevant anymore 

and different countries will likely shift from extreme secrecy to more pedagogical teaching about some stuff