 Seeing the Sierra Club briefings, Secretary of Interior Stewart Udall became puzzled as to why the AEC did not go through him on the project and asked to be sent all the information that the Sierra Club was receiving.As a result, ACS developed a direct line to the head of the Department of the Interior, effectively undermining Edward Teller and the AEC.While Project Chariot was never explicitly canceled and the AEC never admitted that the project was completely misguided and irresponsible, the proposal ceased to gain momentum.