@Mpawlo , MD of Mr Green, has discovered something rather disturbing about twitters DM's. We all knew that various apps we allow in our twitter-account can see these things (if they want to), but I don't think anyone was expecting Google to show DM's in google web search results!
Alert! I can see DM in Google's results. If the last tweet is a DM and tweets are listed in @Goog results (varies), you see it.
tweeted mpawlo he then demonstrates by showing an example.
I've screendumped the search result above, it shows a DM from Gustav to Mikael, and that's enough of a reason for me not to use DM's for any top secret conversations again.
Not that I did, I only used to to tweet the words "superinjunction" and "wikileaks secrets" to all my mates just to annoy them.