As part of the `seven words you can't say' routine that got him in such trouble, George Carlin said "A guy who used to be in Washington knew that his phone was tapped, used to answer, `F*** Hoover!, yes, go ahead'". This was written in 1978 when being listened in on by the FBI gave you a certain standing. Now you ain't nothin' unless the NSA is paying you some attention.
Since we now know that our calls are being monitored, it is time to update telephone etiquette to reflect that fact.
Telephone etiquette:
Old etiquette - when the person you are calling picks up, announce yourself - "This is Joe Schmoe from Acme".
New etiquette - when the person you are calling picks up, announce yourself - "This is Joe Schmoe from Acme, and our NSA handler today is Bob".
Old etiquette - when you take a message for somebody else, make sure to write down who called, their phone number and any other pertinent information.
New etiquette - when you take a message for somebody else, make sure to write down who called, their phone number etc. encrypting said message with the public/private key combination you have agreed to with that person.
Old etiquette - If you expect your conversation to last a long time, make sure you ask the other party if they have time to talk.
New etiquette - If your conversation lasts a long time, announce "Bob, we'll give you a moment to change the tape" and stop talking for 30 seconds or so to give the NSA the needed time.
Cell phone etiquette:
Old etiquette - keep calls short to avoid annoying others.
New etiquette - keep calls short to make it more difficult for the NSA to track you.
Old etiquette - talking loudly on your cell phone in public is rude.
New etiquette - talking loudly on your cell phone in public may make people take notice of you when the black unmarked NSA van stops and you are pulled in to be rushed off to Guantanamo.
Old prank call - "Do you have Prince Albert in a can?"
New prank call - When your buddy, Albert, goes to the can, call al-Qaeda from his phone. Hee-larious!