Such instructions could actually endanger people — citizens receive air strike warnings via smartphone alerts. Anastasia Vlasova/Getty Images "He has kind of an old-school cyber-libertarian world view where technology is there to set you free," Maréchal said. Friday’s performance was part of a larger shift. For the week, the Dow, S&P 500 and Nasdaq fell 2%, 2.9%, and 3.5%, respectively. 'Wild West'
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