But at the time it was a key building block for CemexNet, the communications network.

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And it will be a key building block in expanding trade and commerce that create jobs and benefit both countries.

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Services, in turn, will be a key building block for TomTom.

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Wireless networks are a key building block for smart homes, since they enable devices to talk to each other, and to the internet, without the need to run cables all over the place.

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They also favor preservation of the family rooted in marriage between one man and one woman as the key building block of a healthy, democratic society.

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Like public key cryptography, Bitcoin is a fundamental new building block for building digital systems.

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