by Mandel NGAN with Andrew Beatty in Washington DALLAS, United States (AFP) — President Barack Obama implored Americans of all races to show more unity and understanding as he addressed an emotional memorial for five slain policemen in Dallas Tuesday. The president, accompanied by First Lady Michelle Obama, leaned heavily on scripture as he ministered to a country stunned by gun violence and torn asunder by race and politics. “I know that Americans are struggling […]