Last month a man fell from the Half Dome cables and died. Every time this happens (rarely) there are always people who want to limit access, or "make it safe," etc. My thought is if you think something is dangerous, then don't do it, but don't ruin it for everyone else.
By the way, Todd? . . .
http://www.friendsofyosar.org/rescues/2009/6-13-09_HalfDomeFatality.html