EMP threat ‘as real as the sun’
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EMP threat ‘as real as the sun’

Imagine a months-long blackout across dozens of states, leaving millions dead. Why is the United States so unprepared?

Angry birds
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Angry birds

Long-overdue air war turns tide in war on Islamic State.

Glamorous Glennis at 70
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Glamorous Glennis at 70

Yeager's supersonic flight shaped the future of flight.