Military Pentagon's floating missile defense future: a pair of billion-dollar blimps (+video)

The Pentagon previewed two helium-filled surveillance airships Wednesday. The giant dirigibles are expected to be deployed over the East Coast in February as the United States' new missile defense system.

By , Staff writer

US Army

Two US military blimps flying 10,000 feet above the East Coast will act as a new missile defense system for the United States.