Have you ever made a 'reply all' email howler?

http://www.theguardian.com/commentisfree/2014/may/27/reply-all-email-forward-white-house-open-thread

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The White House caused a security panic when it mistakenly added the name of the CIA's top officer in Kabul in an email detailing the participants of a military briefing. The mistake was eventually spotted, and the list revised, but not before the media had picked up on it. The name was sent to a list of more than 6,000 people, and it is not known whether the CIA chief will have to be pulled out of Afghanistan. Email mistakes are a common worry for anyone who has ever had to send a group message or had the urge to vent their feelings about a colleague. We want to know if you have ever sent an email by accident. Have you ever hit "reply all" and sent a rude message to your colleagues? Have you forwarded an obscene joke to a friend only to find you've sent it to your boss? Tell us if you've ever made an email blunder, and relive your worst memory of it here.