... SUMMARY 11 U.S. ARMY ROLE IN HOMELAND SECURITY 23Introduction, 23Organization of the Army, 24Organization, 24Posse Comitatus Act, 25 Homeland Security, 26 Army Homeland Security Operational ... optimize current science and technology efforts, the Army should take advantage of potential transferability between technolo-gies for homeland security and those for the Objective Force.As the ... undertaking.Recommendation. Army science and technology should aggressively seekout and invest in those cross-cutting sciences and technologies that willbenefit both the Objective Force and the homeland security...