Hanoi, June 3 -- The Vietnam National Authority of Tourism (VNAT) has called for stronger oversight of outbound tourism activities to improve the effectiveness of state management over international travel services and ensure that overseas tours for Vietnamese citizens are conducted safely, responsibly and in accordance with the law. In an official document sent to international travel service providers, VNAT noted that outbound tourism has continued to grow, helping promote international exchanges and meet increasing demand for travel, study and cultural experiences abroad. However, alongside positive developments, authorities have found cases in which individuals have used tourism as a pretext for travelling overseas for purposes other ...