The Navy has begun mandatory anthrax and smallpox vaccinations for sailors, Marines and some civilian workers traveling to and near Iran, Afghanistan and Korea, among several other countries, according to an internal message issued Sept. 1 by Chief of Naval Operations Adm. Vern Clark. Clark's memo puts into effect a Pentagon plan, announced June 30, to widen the military anthrax and smallpox immunization program. That plan expands the program to include all countries within U.S. Central Command's scope and adds...