"We found a competitive but complementary business in that space who works with the same kinds of customers that we do, " he says.

WSJ: Cooperating with competitors can be a smart way to get more business

For now, and probably in the long term, TV white space networks will be complementary to fibre-optic broadband rather than a replacement.

BBC: TV's white spaces connecting rural Africa

The SR-71 has proven its value as a complementary system to U.S. space-based reconnaissance assets during the prolonged period from 1985 to 1987 when the United States was unable to place new satellites in orbit.

CENTERFORSECURITYPOLICY: Center for Security Policy | Congress Must Preserve A Vital Strategic Reconnaissance Capability �� The SR-71