NEW : Japan and Japan issue different radiation warning zones . `` The president emphasized that the U.S. is determined to do everything possible to support Japan in overcoming the effects of the devastating earthquake and tsunami that struck on March 11 . '' Obama emphasizes that the U.S. is determined to do everything possible to support U.S. . Fukushima briefs the president about efforts to contain the nuclear emergency at the Fukushima plant . Kan and Obama talk for 9:30 p.m . ET Wednesday .
NEW : Japan and Japan issue different radiation warning zones . Obama emphasizes that the U.S. is determined to do everything possible to support U.S. . Fukushima briefs the president about efforts to contain the nuclear emergency at the Fukushima plant . Kan and Obama talk for 9:30 p.m . ET Wednesday .