Thieves are targeting the Yakima County landfill in Terrace Heights.  So the county has decided to hire a private security firm. Yakima County Public Works Director Vern Redifer says thieves are stealing metal and copper and other recycleable materials from appliances and refrigerators as a result the county is paying a security company 540 dollars a month to prevent any future thefts at the county landfill in Terrace Heights.