Since the open-source release, dubbed Darwin, has been available, there have been more than 160, 000 downloads of source-code components and more than 20, 000 developers have registered on Apple's Darwin Web site, Bereskin said.

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Last month Apple announced it was releasing to developers source code for a few key components of its Mac OS X Server operating system.

CNN: Apple alters open-source licenses after criticism

Vulnerabilities in communications networks are ever-present and susceptible to insidious code, back doors, and malicious spyware, regardless of where the components are manufactured.

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The genetic code contained in the DNA is read by ribosomes in chunks of three individual components.

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The foreign-components provision in 9-9-9 would thereby harness the tax code for the dubious purpose of promoting inefficiency.

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Threats to the supply chain range from the installation of malicious code in either hardware or software to the installiation of counterfeit equipment and the disruption of the production of critical components.

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