This is hilarious and sobering at the same time.
One comment, when you send a person a letter or an email and the said letter and email does not explicitly declare and demand the privacy of said communications, it is the property of the recipient and I believe the recipient can do what he/she wants with it.
You may get a modicum of privacy expectations by attaching a signature on your email like:
"This email message (including attachments, if any) is intended for the exclusive use of the individual or entity to which it is addressed and may contain information that is privileged, proprietary , confidential and exempt from disclosure. The intended recipient may not republish, reprint or resend the contents of this email without explicit and written permission of the sender. If you are not the intended recipient, you are notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify the sender and erase this e-mail message immediately."