The Pacific Northwest National Laboratory (PNNL) hosted students from across the United States at the 5th Radiation Detection for Nuclear Security Summer School 18-29 June 2018. The summer school provided students with a unique understanding of nuclear security challenges faced in the field and exposed them to the technical foundations, analyses, and insight that will be required by future leaders in technology development and implementation. The course heavily emphasized laboratory and field demonstrations including direct measurements of special nuclear material. Student evaluations and feedback from student advisors indicates that the summer school achieved its objectives of 1) exposing students to the range of nuclear security applications for which radiation detection is necessary, 2) articulating the relevance of student research into the broader context, and 3) exciting students about the possibility of future careers in nuclear security. In fact, we have seen previous students enroll in and complete graduate programs (former undergraduates), complete internships at agencies like the National Nuclear Security Administration, and become staff members at national laboratories and other government agencies.