<p>Demonstrators hold signs as they as they block traffic on Interstate 94 in St. Paul, Minn., after leaving a vigil at the state Capitol on Friday, June 16, 2017. A Minnesota police officer was cleared Friday in the fatal shooting of Philando Castile, a black motorist whose death captured national attention when his girlfriend streamed the grim aftermath on Facebook. (Anthony Souffle/Star Tribune via AP) </p>
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