The technique exploits the arcana of quantum mechanics to let two computers swap a cryptographic key (and thus the means to decode a message) with perfect security.

ECONOMIST: Optical communications

Swap spreads have become a key barometer of financial health.

ECONOMIST: Credit derivatives

As part of that push, it has signed a series of swap deals with some of its key trading partners.

BBC: China and Brazil sign $30bn currency swap agreement

It will be interesting to see whether the game has both male and female Swap Force characters as this has been a key message with both the original and Giant figures.

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