She said all the booby trapping happened in the last days as the US was about to recapture the dam, so it was hastily done. That being said, it did slow operati

She said all the booby trapping happened in the last days as the US was about to recapture the dam, so it was hastily done. That being said, it did slow operations as they then had to sweep the entire dam after they realized what happened. She said it would have been pretty difficult for them to cause significant structural damage, because as mentioned it was 'bomb proof' and as stated they were making money up until the very end in selling electricity.