73It is also apparent from the case-law that a party which tacitly approves of an unlawful initiative, without publicly distancing itself from the content of that initiative or reporting it to the administrative authorities, effectively encourages the continuation of the infringement and compromises its discovery. That complicity constitutes a passive mode of participation in the infringement which is capable of rendering the undertaking concerned liable (Aalborg Portland and Others v Commission, paragraph 84).
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