It isn't time to "take a step back." It is time to send in the National Guard and remove all local police and sheriffs from Ferguson and detain the cop that shot Michael Brown. DO IT NOW.
Let the people protest and let the media document everything. Remove every cop that has detained and arrested the press and have the AG review every arrest of the citizens. TAKE NAMES AND DON'T BACK DOWN.
You are on thin ice, Mr. President. Don't fuck this up.