BBC correspondents report from Westminster on the most significant of the day's stories in…
Ed Miliband attacks David Cameron's pledge for an in/out referendum on the UK's membership of the EU; calls are made for an inquiry into allegations that some construction workers were "blacklisted"; the government sets out changes to A-levels in England; and a peer criticises TV coverage of travel disruption caused by the recent snow. Sean Curran presents the day's main news stories from Westminster. Editor: Alan Soady.
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