Complex sentence: In July 2011, written testimony was presented to the United States House Homeland Security Subcommittee on Counterterrorism and Intelligence by Ambassador Roger F. Noriega, visiting fellow at the conservative think tank American Enterprise Institute, former US diplomat and policy maker, specializing in Western Hemisphere Affairs.
Split into simpler sentences: In July 2011, a written testimony by Ambassador Roger F. Noriega Noriega is currently a visiting fellow at the conservative think tank American Enterprise Institute. He has previously served as a US diplomat and policy maker, specializing in Western Hemisphere Affairs.