Venezuela opposition denounces UNASUR mediation as a "PR stunt" The Venezuelan opposition demanded the liberation of its "political prisonners", Caracas mayor Antonio Ledezma and opposition leader Leopoldo Lopez, to participate in talks with the government under the mediation of the Union of South American Nations (UNASUR). Opposition spokesman jesus Torrealba also denounced the presence of UNASUR as a "PR stunt orchestrated by the government" after the regional body condemned "attempts to destabilise democracy in Venezuela", referring to several alleged coup attempts the Caracas administration claims to have stopped. IMAGES AND SOUNDBITES