Hi all I want know your opinion about anti-interception comunication.

Is there a secure method to digital-comunicate without risk of interception?

With no gov(NSA for example) backdoor, no possibility of decrypt/sniffig??

I know freenet project but i dont know if it is secure.

Also there is zphone that crypt voip comunication.

But all these tools/method dont assure me the absense of backdoor.

Do Somebody know a real secure method of comunication???

Thanks in advance.