Saudi newspapers commented today editorially on a number of local and Arab topics, underlining the significance of intellectual security and said it is an essential matter for enhancing the pillars of security in various societies. Following are major headlines: - King Abdullah receives princes, Ulema and diplomats. - King Abdullah and Crown Prince receive more cables of congratulations on occasion of Ramadan. - King calls Chinese president inviting him to attend the opening of King Abdullah University. - Crown Prince Sultan patronizes Arab engineering conference. - Prince Naif calls for establishing higher scientific institutes. - Saudi-Jordanian summit opens tomorrow. - Egypt asks Israel to apologize for shooting Egyptian soldier. - More than 100 Houthians killed in north Yemen. - Relations exist between al-Qaeda and Abu Sayyaf in Philippines. - No peace before 2025, says Lieberman. - WHO warns against swine flu. - Korean presidents exchange messages. --MORE