I found a very good video including scholarly references proving that the Mormon temple rites have been drastically changed over time. Many Mormons deny these changes, which is blatant deception. If there are any not familiar with the changes, I highly recommend this informative video:

http://www.youtube.com/watch?v=F-r3eBf1rwY

Now I'm sure the Mormons here and elsewhere are embar***ed by the gruesome oaths Mormons used to promise in their temples - how they would die if they revealed any secrets. At the end of the video, the maker states that as far as is known these gruesome penalties weren't inflicted on apostates - however we should recall that the Danites did actively pursue "apostate" Mormons, and I'm not so sure that they didn't inflict the penalties. The Danites are an ongoing target of investigation.