U.S. Army Gen. Charles H. Jacoby Jr., commander North American Aerospace Defense Command and U.S. Northern Command, talks to students in NPS's Center for Homeland Defense and Security program Jan. 31. He fielded questions from the students, who are made up of first responders from local, state and federal government agencies. Jacoby provided his own briefing on the current state of his command and how it affects nearly all of those in the audience. (U.S. Navy photo by Javier Chagoya)