Prince Naif bin Abdulaziz, the Second Deputy Premier and Minister of Interior opened here today the Conference on "Technology and Sustainability in Built-Environment" organized by the Faculty of Architecture and Planning at King Saud University, with the participation of more than 100 researchers and experts from more than 42 countries. Upon arrival at the venue, Prince Naif was received by Prince Ahmad bin Abdullah bin Abdulrahman, the Governor of Dir"iyah; Minister of Higher Education Dr. Khalid Bin Mohammed Al-Anqari, and Rector of King Saud University Dr. Abdullah bin Abdulrahman Al-Othman. --More