So far science and technology have been our friends. With the help of these tools we were able to make this world a happy place for us. Technology is not bad till it is our slave but when it will become our master, it would be the worst time for us. We should praise those scientists who sacrificed their life in finding of truth. They were the gems of humanity. 
But now we have different breed of scientists who work for corporate. These so called scientists are not among those for whom science was worship and a matter of living. Now, we have slaves of money who are just serving big corporate and in servicing of their masters they are not hesitating to destroy life on the face of this God forsaken planet.  
Forget about robots or deadly diseases, or nuclear bomb. In fact genetic engineering will be the tool of our destruction. Without knowing much about the end results they are forcing their half backed knowledge upon us in the name of innovative technology. Over population is helping them. In the name of feeding this huge population, they are freely performing and applying experiments with the genetic code of plants and animals which will ultimately become a matter of destruction of every life form from the face of the earth. 
Example of BT cotton is in India. Monsanto (whom many call an evil corporate) sold this genetically modified cotton in India in the name of fighting bollworm larvae but proved fatal for the farmers. Many farmers were forced to commit suicide on account of using this seed. It was told that BT cotton will fight against pests. It worked for some years but later pests developed resistance. It had terminator technology which means infertile seeds. Farmers were forced to buy costly seeds which were good for nothing. Ultimately, a big loss for them and suicide became inevitable for them. 
This is being repeated with other plants and now with animals also. Farmers would buy those seeds and ultimately become slaves to the evil corporations. What will be the outcome of it is not difficult to predict.