Colin Kaepernick says he has received death threats through social media and other avenues since he began to protest during the national anthem last month. Kaepernick said Tuesday he has not alerted San Francisco 49ers team security about the threats and understood that could happen once he began his protest over racial oppression and police brutality in the United States. Kaepernick's protest during the anthem became public last month when he sat during the anthem before a preseason game against Green Bay and later explained his reasoning. More...