Ah crap. Poor guy, hope he responds well to treatment.
Over the years I have had a number of clients who have developed this kind of spread to liver spots and they have been very successful with chemotherapy.
Cancer is a disease that makes you look over your shoulder for the rest of your life. Always be on guard. Don't let anything go like you use. Can't take any chances. Go to the doctor -- just in case.
Always trying to outrun it.
I pray that the Spirit of the Living God will surround Tony Snow and everybody he loves and give him a quieting sense of peace that will help his body heal this invader.