ISLAMABAD: National Security Adviser Nasser Khan Janjua has said that political stability is a guarantee of national security. Addressing a function here on Tuesday, he said national security should also be seen in regional and global perspective. He said national security is also closely related to good governance, human resource development, and food security, provision of health facilities to people and taking care of the needs of the poor. He said monitoring and vigilance of the international borders of the country has been strengthened as part of the strategy to beef up national security. He said protection of cyber information is also necessary to ensure national security