You might want to report the experience to:
Consulate General of Japan
350 South Grand Avenue, Suite 1700,
Los Angeles, California 90071, U.S.A.
Tel: (213) 617-6700
Fax: (213) 617-6727
Which covers both California and Arizona.
Does Japan have an equivalent to the State Department's Travel Advisory?
"Travel Warnings are issued when long-term, protracted conditions that make a country dangerous" applies to the TSOs in your wife's situation. Maybe they can warn potential Japanese tourists of their reception in the US.