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Dallas Police respond after shots were fired at a Black Lives Matter rally in downtown Dallas on Thursday, July 7, 2016. Dallas protestors rallied in the aftermath of the killing of Alton Sterling by police officers in Baton Rouge, La. and Philando Castile, who was killed by police less than 48 hours later in Minnesota. (Smiley N. Pool/The Dallas Morning News) -- MANDATORY CREDIT, NO SALES, MAGS OUT, TV OUT, INTERNET USE BY AP MEMBERS ONLY
Dallas Police respond after shots were fired at a Black Lives Matter rally in downtown Dallas on Thursday, July 7, 2016. Dallas protestors rallied in the aftermath of the killing of Alton Sterling by police officers in Baton Rouge, La. and Philando Castile, who was killed by police less than 48 hours later in Minnesota. (Smiley N. Pool/The Dallas Morning News) -- MANDATORY CREDIT, NO SALES, MAGS OUT, TV OUT, INTERNET USE BY AP MEMBERS ONLY

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    Experta: Emboscada en Dallas es el comienzo de una insurgencia

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Experta: Emboscada en Dallas es el comienzo de una insurgencia

Vanessa Neumann, experta en seguridad, opina que la emboscada a policías en Dallas es "solamente el primer acto" de una insurgencia ciudadana motivada por tensiones raciales.

Experta: Emboscada en Dallas es el comienzo de una insurgencia

Vanessa Neumann, experta en seguridad, opina que la emboscada a policías en Dallas es "solamente el primer acto" de una insurgencia ciudadana motivada por tensiones raciales.