No, you're a complete fucking dolt and most likely a socialist and/or communist.
The world isn't full of nice people.
Do you think the founding fathers would agree that the release of communications to the public with our allies would have "helped" us?
I'm neither. I'm not a big fan of isms/ists.
People fail to be nice when they can get away with it. They can get away with it when it's not known. You've heard the phrase 'an armed society is a polite society'? Knowledge/truth is the ultimate weapon.
First, the founders weren't Gods. While intelligent and brave, they're not the be-all/end-all. Second, they would likely be conflicted, like most people. They would see the good and bad inherent. Given their absolute distrust/hatred of strong centralized federal governments, I'm betting most of them would come down at least slightly on my side of the line on this one.
Yes, there is a need of some things to be confidential...troop movements, codes, frequencies, some identities, etc. That's about it though.