Even today, Green Mill couldn't be more gangster if it insisted everyone wore trilbies and carried violin cases.

BBC: Chicago??s celluloid city

What's the market that involves a lot of technology, specialization, highly trained workers, quick turnarounds to spec so that the customers really feel like they're getting something special and different -- that's how you compete, because that's something that a steel mill in China or in Brazil can't do.

WHITEHOUSE: "White House to Main Street" Town Hall: Elyria, OH

Well, that's the theory behind a robotic wheelchair concept from the Chiba Institute of Technology, which uses leg-like motion to conquer obstacles a run-of-the-mill wheelchair can't.

ENGADGET: Robotic wheelchair concept adds leg-like movement, tackles stairs with ease (video)