GCHQ boss warns China can rewrite 'the global operating system' in its own authoritarian image

Brit spymaster calls for renewed attention to UK tech capabilities - and expanded role for his agency

The director of the UK's signals intelligence agency has delivered a speech in which he contemplated power in the digital age, observing that "China'ssize and technological weight means that it has the potentialtocontrol the global operating system," and hinting at an expanded role for the agency he leads as one way to fight back....