Why is the FDA Acting so suspicious?

Epoch news
https://youtu.be/IPncEwOY1bo

They want to wait 75 years to release documents related to the vaccines that have solved the pandemic? If this is a mass killing plague upon the Earth, then why dont we share this information openly. Why cant everyone not only access the documents, but why cant other countries have the exact process or formulas used to create the vaccine? This should be shared openly!
None of us were born yesterday. So why do they act like we were?