Congress is poised to lay a major new requirement on the U.S. military's long-range missile defense enterprise, mandating a comprehensive set of actions to establish persistent cybersecurity operations and testing for ballistic missile defense systems and networks. The final version of the fiscal year 2023 defense policy bill, awaiting Senate approval and subsequent signing by the president, includes a provision that would require the Defense Department to craft a plan to shore up the $226 billion collection of sensors, guided...