CATALYST: A Malaysian consumer group has called for Muslims to boycott Coca-Cola. Coke once wanted to teach the world to sing but some are starting to think the only song it knows is the star spangled banner. Coke's highly recognisable brand - normally its great strength - can be a lightening rod for anti-Western sentiment. While calls for a boycott in Malaysia are unlikely to damage Coke severely, such initiatives could create opportunities for the brand's local rivals.