Some people have discovered this on their own, but for everyone else, the forums do have a "spoiler tag", behind which you can hide any information that you believe could spoil someone's enjoyment of a future episode of 24 (or anything else), but still means people can read the information if they so choose (by marking the black bar with your mouse).
[spoiler] spoilerish information[/spoiler]
[spoiler] spoilerish information[/spoiler]
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