Excavation!

It was a bright sunny day. The ripples of the 200th year celebration of the One-World treaty was still felt. It was a better day for us in the Terra-bore org because the Union Government had given us the sanction and the needed funds to explore Area-52.
You might be wondering what im talking about. Let me explain. In the year 2150, all the world economies merged to form a single entity under the One-world treaty. Under this 100 sites around the world were made into restricted zones. They were either vanishing ecosystems or had some unwanted history. 200 years down the lane, No human , robot or Neptunian has tread on these grounds. Area-52 is one such site in the eastern hemisphere. We were given the sanction to explore this after the satellites showed a large stores of carbon, hydrogen and nitrogen in some undiscovered compound.
We were amazed to find that the compound was a new one. Johan was not sure about this. He had a couple of examples where the analytical skills of robots could not be relied upon. Robotics in our field was relatively low. You could not train one for excavation! or so we thought!
It was mid year and the weather was on our side. Within meters of digging, we stumbled upon huge containers, cement rubble and very few human remains. As a protocol everything had to be sent to the on-site lab. It was, in a excavators day, a very fruitful one.
The rewarding first day succeeded with bad news the next morning. We never saw it coming. we had received an order to stop mining and our fund were completely stopped. The notice gave no explanation as to why this was stopped. The notice was also signed by the One-world industrial division and the union govt. had this been one more influential move by the industrialists? We wanted an answer, and we did not have to wait long.
As we packed our field equipment in the trench, we saw Johan standing at the top of the trench. I called out " Any lead on that?". He shrugged and said " I was right about the satellites". I knew his victorious speeches and acts. "anything about why this was stopped?" He answered " Your valuable containers did you in!" . I was astonished, "those were the best finds in the past decade! it does not belong to a war, nor does it have a name". i could see Johan smiling. he said " thats where you are wrong! they got a name". This was something we were not ready for! I looked at him with a question mark on my face, and Johan turned and started walking. As he walked he shouted "Union Carbide!".