President Trump announced his desire for a missile-defense system protecting the U.S., labeling it a “Golden Dome.” Trump has taken inspiration from two places: former President Ronald Reagan’s Strategic Defense Initiative,

The Pentagon's Test Resource Management Center is considering sites in Australia, Alaska and New Mexico as possible overland hypersonic testing corridors.

The U.S. is moving forward with plans to develop a "Golden Dome" missile defense system. What exactly does this mean for national security?