The momentous era of ex-Soviet leader Mikhail Gorbachev, who has died aged 91, was often defined by buzzwords and slogans. From perestroika to glasnost to "Gorbymania", here are five of the best-known. Perestroika Shorthand for Gorbachev's drive to modernise the Soviet economy and society, perestroika... read full story
"It's obvious, comrades, that we all need to change. All of us."