diff --git a/doc/design/assistant/blog/day_281__back/comment_1_128809c5a2a9f5cc345a10fdbf55be01._comment b/doc/design/assistant/blog/day_281__back/comment_1_128809c5a2a9f5cc345a10fdbf55be01._comment
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+[[!comment format=mdwn
+ username="https://www.google.com/accounts/o8/id?id=AItOawlJ2utMQgMEYAOs3Dfc6eZRyUzt4acNXUU"
+ nickname="David"
+ subject="comment 1"
+ date="2013-06-10T23:42:20Z"
+ content="""
+If you do a D-H key exchange and display the key fingerprint on both devices, that would be a pretty strong disincentive against XMPP servers doing a MitM. You only need one victim to casually notice a discrepancy, and it leaves behind a strong proof of tampering.
+"""]]