Yes Joanna Moorhead So, 11- and 12-year-olds across Britain and the US are standing by in the hope that Mark Zuckerberg's plea for under-13s to be allowed to use Facebook is heard by their countries' decision-makers. Only, of course, they aren't . . . because they are already on it, tapping away furiously like all their mates, finding out what shopping centre to meet in after school tomorrow and w
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