http://blog.wired.com/27bstroke6/2007/08/media-mole-at-d.htmlDateline producer Michelle Madigan attempted to attend the world's biggest security convention under false pretenses. Not surprisingly, she was outed and publicly humiliated.
Geeks: 1, Sensationalism: 0
If you're feeling rather salacious, there is also a YouTube video showcasing her expulsion:
http://youtube.com/watch?v=nCvmkxO5hoQ Look I understand the merit of undercover journalism, but I do not appreciate innocent people being vilified, especially given Dateline's previous work.