Long Island by Colm Tóibín review: A sequel that doesn't fly quite as high

The Seventies! The decade of flares, chevron moustaches and disco. Well forget all that. In Long Island, Colm Tóibín’s sequel to Fifties-set Brooklyn, it’s frosted glass doors, Vietnam protests on the tele and people suddenly trying to give up ciggies after years of carefree chain-smoking that indicate we have skipped forward two decades.