Iranian, US experts to hold mediated discussions on Wednesday -- senior Iranian diplomat / Trump's letter to Khamenei similar to his public rhetoric -- Iranian diplomat / Another attempt by Trump to put pressure on Tehran will fail -- top Iranian diplomat / Senior Russian diplomat, Iranian ambassador discuss situation in Middle East / Despite abundance of information available on internet, importance of books remains intact: Iranian envoy / Iran's top diplomat works to prevent terrorism spread during foreign visits -- Iranian MP / Diplomat lauds Iran's 'professionalism' in retaliating to Israeli strike on Tehran