NIU offers specialized research and study programs in Top Secret/Sensitive Compartmentalized Information (TS/SCI), providing certificate programs, undergraduate and graduate degree programs in Denial and Deception, Intelligence Studies, Strategic Intelligence, and Technology Intelligence. With both full-time and part-time options, NIU equips students with critical thinking skills to handle situations that impact national security. The university's graduates often secure lucrative careers in agencies like the CIA and NSA. NIU also hosts on-campus events featuring renowned authors and presenters who discuss relevant topics such as energy, intelligence support in fighting terrorism, international engagement, and spying. To be eligible for enrollment, prospective students must be U.S. citizens, high school graduates, federal government employees, or armed forces members with TS/SCI security clearance. GPA and coursework are assessed for enrollment eligibility, and military personnel may receive tuition assistance through G.I. bill educational benefits.