JOHOR BARU: It is one of the busiest checkpoints in the country but those using the Sultan Iskandar Customs, Immigration and Quarantine( CIQ) Building are complaining that many of its facilities are old and need urgent upgrading. They feel that the escalators, immigration autogates and security at and around the complex here need sprucing up now that the international borders have reopened. For Malaysian Naz Hasfar, 31, who has been working in Singapore for the past eight years, Bangunan Sultan