Information critical to the security of nations is embedded in an array of foreign languages. Foreign language professionals must often analyze complex information from different language sources, and the integrity of their analyses can significantly affect corporate and government decision-making, policy development, and response to world events. Psychological stress and fatigue can degrade the performance of foreign language professionals resulting in errors that may adversely affect security. Optimal design of work organization and work environments, individual stress management training, and augmented cognitive linguistics may facilitate the performance of foreign language professionals. Strategic assessment and management of stress and fatigue in foreign language professionals can improve the integrity of information analysis, facilitate decision-making, and enhance global security.