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Vehicles are increasingly being used as weapons, as seen in the London Bridge attack over the weekend and in New York\u2019s Times Square last month. The Compton-based company Calpipe is designing security bollards to help make public spaces safer. And novelist Kevin Kwan satirizes the \u201ccrazy rich\u201d Asian jet set and their luxurious tastes in his latest book, \u201cRich People Problems.\u201d