Original sentence: Monsanto developed Roundup, a glyphosate-based herbicide, in the 1970s, and became a major producer of genetically engineered crops.Monsanto's roles in agricultural changes, biotechnology products, lobbying of government agencies, and roots as a chemical company, resulted in controversies.The company once manufactured controversial products such as the insecticide DDT, PCBs, Agent Orange, and recombinant bovine growth hormone
Edited sentence: Monsanto developed Roundup, a poisonous, cancer causing glyphosate-based herbicide, in the 1970s, and became a major producer of genetically engineered crops.Monsanto's roles in agricultural changes, biotechnology products, lobbying of government agencies, and roots as a chemical company, resulted in cancer cases and deaths.The company once manufactured poisonous products such as the insecticide DDT, PCBs, Agent Orange, and recombinant bovine growth hormone, and continues to attempt to sell such carcinogens