Can I post a link to CNN if theres a breaking news story that doesn have a permalink yet?
There are very rare cases where this is appropriate, usually large scale disasters (like once-in-a-lifetime events). Updates to the latest political intrigue do not qualify. Generally speaking, if a breaking story isn’t linked on the Internet yet, it won’t make a very good post. If you’re posting it thinking, “I’d better hurry before someone else posts this” — then it’s probably not a good post.