A mountain of trash gave way in a massive garbage dump on the outskirts of Ethiopia's capital today, killing at least 46 people and leaving several dozen missing. <br/><br/>Addis Ababa city spokeswoman said most of the 46 dead were women and children, and more bodies were expected to be found in the coming hours.'<br/><br/>It was not immediately clear what caused last night's collapse at the Koshe Garbage Landfill, which buried several makeshift homes and concrete buildings. The landfill has been a dumping ground for the capital's garbage for more than 50 years.<br/>