It would be nice if people don't give away the storyline, there are people who have not seen Season 5. In fact, there are people who have not seen all the seasons. Until this summer, we were one of those who were catching up with all the 24 episodes and now we have season 5 but have not had time to watch more than 1 episode. Please don't mention who gets killed, who survives and who's responsible.
Anybody who hasn't watched a show a year after it aired, and who doesn't want to know what happened, should probably not read any stories or threads about the show.
It is unreasonable to expect people to never talk about what happened on the show.