The Evolution of Language: 'Green Light' and Beyond

Mikheil Saakashvili, a former president, is seven weeks into a hunger strike and protests supporting him are proliferating. We ask where the country is headed. China’s state-sponsored industrial espionage is growing more overt and more organised—and little can be done to stop it. And how to figure out the past tense of verbs like “green-light” and “gaslight”.

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