Uncollected thrash is piling up on the streets of the southern Bosnian city of Mostar — one of the Balkan nation's main tourist destinations — since residents begun blocking access to the city's only landfill, insisting that it poses serious health and environmental risks. The landfill, located in a residential area, has operated since the 1960s. It's supposed to be for non-hazardous household waste but protesters say authorities in recent years have allowed businesses to dump hazardous animal and medical waste in it as well as wastewater treatment sludge.