Stores and credit-card companies are in an all-out war over fees

AP/Luis Hidalgo Retailers are hoping to quash the "honor all cards" rule that requiresretailers to accept all of a network's credit cards if they accept any as a form of payment, the Wall Street Journal reported. The rule is included in contracts betweenVisa and Mastercardand the retailers that accept their cards. Some major retailers are arguing that the fees charged by certain premium rewards cards are getting too high to be sustainable. The conflict is one sticking point in a 13-year-old laws...