Liberty has failed; has justice been granted?

In the aftermath of the trial of George Zimmerman for murdering Treyvon Martin in  SELF DEFENSE, what does the PLEDGE OF ALLEGIANCE TO THE AMERICAN FLAG mean to you? 

"I pledge allegiance to the Flag of the United States of America,and to the Republic for which it stands: one Nation under God, indivisible,With Liberty and Justice for all."

Has liberty and justice for all prevailed in the American system of justice for Treyvon Martin and for George Zimmerman?  What are your views?