Russia Developing New Mystery Nuclear Missile

President Vladimir Putin said this week that Russia is developing a new form of nuclear missile unlike those held by other countries, news agencies reported. Earlier this year, a senior Defense Ministry official was quoted as telling news agencies that Russia had developed a weapon that could make the United States' proposed missile-defense system useless. Details were not given, but military analysts said the claimed new weapon could be a hypersonic cruise missile or maneuverable ballistic missile warheads.