Unless you find a way to run a signal over a single cable/wire/fibre from point a to point b all over the entire world, at some point you are going to have to add routers, repeaters, bridges etc.  All these points would qualify as interruption points.  So, either you would need a wire from you to every point on the planet you might conceivably communicate with OR you will have to have each relay point decrypt and re-encrypt the data.

Kinda defeats the point if a pile of hardware outside of your control decrypts and reencrypts your data with new encryption keys.

Now how do you think they managed to over look that little point while getting all those research dollars?

http://www.physorg.com/news128608179.html