3D1425937047000%26v%3D2%26position%3D1%26china_variant%3DFalse&utm_medi um =10today.0309&position= l& part=sl&china_variant=False> fortune.com / BY ERIKA FRY The knives are flying at the Japanese-restaurant chain.lf you want to pinpointthe moment when the battle over Benihana escalated from mere belligere