PORTSMOUTH, Va. - Seaman Edward Creech and Petty Officer 1st Class Luis Rivera simulate stopping an attack on an entry control point during a demonstration at Integrated Support Command Portsmouth, Va., June 24, 2008. Creech and Rivera are both members of Coast Guard Port Security Unit 305 based out of Fort Eustis,Va., which participated in demonstrating its capabilities to the Homeland Security Advisory Council during its visit to the ISC. (Coast Guard photo/Petty Officer 2nd Class Nathan Henise)