matsu, 75, poetically documented his times &8212; traditional Japan before the war, shocked Japanese after the A-bomb attacks, the mixed blessings of Americanization. # The artist&8217;s disdain for Americans is evident in the &8220;Americanization&8221; section of the exhibit, but his series &8220;Chewing Gum and Chocolate,&8221; which focuses on Americans settling into life in Japan, is one of #