(CNN)Nick Cannon says his children are aware of police brutality and are fearful.Cannon recently spoke with "Access Hollywood" about his participation in demonstrations sparked by the death of George Floyd.Floyd, 46, died while in police custody after former Minneapolis police officer Derek Chauvin pressed his knee on his neck for nearly nine minutes during an arrest.Cannon recently traveled to Minneapolis to protest."I even got some pushback for this, which you know I don't care what people