How worried should we be about menacing spies in the sky?
EDWARD LUCAS: Some 80,000ft above our heads a high-tech tussle is under way, with our most closely guarded secrets and our national security at stake.
Source: dailymail.co.uk
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EDWARD LUCAS: Some 80,000ft above our heads a high-tech tussle is under way, with our most closely guarded secrets and our national security at stake.