The country’s civilian communications network, including some 250,000 cell phone towers, would double as a defense grid.
More proof that we're a nation of scaredy cats.
A huge "lighter than air" craft may be able to combine the advantages of satellites and airplanes. The technology of tomorrow is enticingly close, but not quite here yet.
Whether it's the Gaza Strip or the tragic mess of MH17, July has been a big month for missiles. So how do they work? And how did we get to this point?
Even as diplomats work on a last-ditch effort to get Syria to hand over its chemical weapons to international authorities, the US gearing up to launch missiles if Obama gives the order. But just how expensive are those missiles?