76Thus, if the institution concerned decides to refuse access to a document which it has been asked to disclose, it must, in principle, explain how disclosure of that document could specifically and effectively undermine the interest protected by the exception — among those provided for in Article 4 of Regulation No 1049/2001 — upon which it is relying (Sweden and Others v API and Commission, paragraph 72 and case-law cited). Moreover, the risk of that undermining must be reasonably foreseeable and not purely hypothetical (Sweden and Turco v Council, paragraph 43).
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