Set in New York, Ha Jin’s new novel, The Boat Rocker, takes place “a week before the fourth anniversary of 9/11”. Much of the novel’s power derives from the uncanny parallels between the issues faced by its central figure, a truth-seeking online journalist in the era of Hu Jintao and George W Bush, and all of us, in our Trumpian moment, as we struggle with its penchant for “alternative facts”.