Just about everyone has, at some time or other, said something in a telephone conversation or e-mail that wouldn't look too good printed in a newspaper.
Of course, the US communicates with its embassies through secure telephone links and computers, so that conversations and messages can be critical, candid or off the wall.
Thoughts about world leaders can be expressed because it's all in-house.
However, when one of their own copies hundreds of thousands of 'secure' e-mails, technology falls flat.
The delivery of future secret communications could well depend on a man on a jet - or a man on a donkey.