Authorities have revealed the cause of the Texas dairy farm explosion that killed nearly 20,000 in April this year. The massive explosion at the South Fork Dairy in Dimmitt, Texas, killed thousands of cattle and injured one person. The smoke from the explosion was so large it could be seen by witnesses 80 miles away. According to investigators, an engine fire in the manure hauler caused the explosion. However, it is unclear what caused the engine fire, but authorities claim there was “no intentional act to cause a failure.” AP reported: A fire and explosion at a dairy farm in...