The Navy wants the Standard Missile-3 Block IIB missile to be much more capable than previous variants and is willing to expand the design options to include modifications to existing missile-launching systems and the use of liquid propellants, the service has told the Missile Defense Agency. In an Oct. 4 memo, Vice Adm. William Burke, deputy chief of naval operations for warfare systems, provides the agency with operational planning considerations needed for the development of the SM-3 IIB missile, a...