By the mid-1920s however, the German government was using one-time pads for diplomatic correspondence.

Studies of the Vatican archives and international diplomatic correspondence continue.

So far as we can tell, there have been no further attempts to tamper with the diplomatic correspondence.

The king had a kara-naa and used it in diplomatic correspondence with China.

She was the subject of much diplomatic correspondence.

Future diplomatic correspondence is going to be a lot more circumspect.

Much of his diplomatic correspondence is in the British Museum.

Which means that at some point, probably after they attack us, they're going to publish their version of our diplomatic correspondence.

He's publicly on record as having seen diplomatic correspondence which we know for a fact didn't exist.

His surviving diplomatic correspondence is a valuable source for these events.