Tiny Satellites From Silicon Valley May Help Track North Korea Missiles - The New York Times
For years before North Korea fired its first intercontinental ballistic missile this week, the Pentagon and intelligence experts had sounded a warning: Not only was the North making progress quickly, spy satellite coverage was so spotty that the United States might not see a missile being prepared for launch.
That set off an urgent but quiet search for ways to improve America’s early-warning ability — and the capability to strike missiles while they are on the launchpad.