Conversation so far:
What was the Secretary of the Interior in relation to Rogers Morton?
Rogers Morton was nominated to be Secretary of the Interior by President Nixon
Did Rogers Morton win the nomination from president Nixon?
Rogers Morton was unanimously confirmed by the United States Senate Subcommittee on the Interior.
What was Rogers Morton's greatest accomplishment as Secretary of the Interior?
Rogers Morton was the one who announced the construction of the Trans-Alaska Pipeline System

Question: what else is known about the construction?
Self-contained rewrite: What else is known about the construction of the Trans-Alaska Pipeline besides being announced by Rogers Morton?