单选题：In John Whitehead's opinion, which statement is true?

题目内容：
In John Whitehead's opinion, which statement is true? A．Face recognition technology may interfere with people's privacy.
B．Face recognition technology may enhance the country's constant surveillance.
C．Face recognition technology can be used in the same way wiretaps are used.
D．Face recognition technology can be used after its threat has been removed.

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