I «like» bombs?

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The «like» function in Facebook sometimes confuses me. Sure, I also use it if I, you know, really like something - a funny update of a friend, for example. But what do the people mean who «like» news reports like the above? Do they like the fact that there were bombs? Or do they like the story? Do they just think it's important, for whatever reason? Are «like» and like the same thing?