At the Lloyd’s List Maritime Security Conference in held in London today, Dr. Hans Payer of Germanischer Lloyd, and Clay Maitland of International Registries, Inc. (IRI) were on hand to deliver speeches outlining pertinent security issues. During his speech, Dr. Payer, a member of the executive board of the society and a former chairman of IACS, said, Germanischer Lloyd is planning some specific research into the resistance of double hulls to external explosions caused by terrorist attack. "This is a natural extension of the studies we have already conducted both theoretically and experimentally into the collision resistance of double- hull ships. Double hull designs are more resistant to limited impacts such as low energy collisions or groundings.