Marks realized that tech companies would pay for design, logistics and distribution as well as assembly, so over the years he acquired companies in those areas.

FORBES: The Detour Economy

He realized tech firms would pay for design, logistics and distribution, as well as assembly, so he acquired companies in those businesses.

FORBES: The Detour Economy

Regulations that the government alleges Wilson violated would require approval for the design, development, production, manufacture, assembly, operation, repair, testing, maintenance or modification of firearms including blueprints, drawings and plans, or just about every aspect required to print a gun using a 3-D printer.

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Advances in the life sciences means it is now possible to design DNA on a computer screen and send the DNA code to a "bio printer" for assembly.

CNN: How technology makes us vulnerable