 A second edition of the book, co-authored with Barry Dorn and Eric McNulty, was released in June, 2011.At the National Preparedness Leadership Initiative, an initiative developed in collaboration with leadership of the Centers for Disease Control and Prevention (CDC), the White House Homeland Security Council, the United States Department of Homeland Security, and the Department of Defense, Marcus, along with colleagues Joseph Henderson and Barry Dorn, pioneered development of the conceptual and pragmatic basis for "meta-leadership"- "overarching leadership that strategically links the work of different agencies and levels of government", and "connectivity" – the coordination of "people, organizations, resources, and information to best catch, contain, and control a terrorist or other threat to the public's health and well-being.