The point is that Palin should not and cannot answer. She needs to rise above the attacks. If she is going to run for president, she needs to be presidential. She can't descend to the level of her critics. She needs to do what makes her look good, fighting for less government and conservative causes, not what makes her look bad -- fighting with her enemies.
If Palin took the high road -- as Obama did -- and decried the violence in our society and stuck to condemning the killings, she would not have been hurt by the liberal charges. But, by answering, she exposed herself and got hurt.
Next time, we hope she learns her lesson.