Conversation so far:
What good things did Dan Rooney do as an ambassador?
In what year was Dan Rooney become the U.S. ambassadorship to Ireland?
Dan Rooney was sworn in as the new ambassador to Ireland in 2009
What government position did Dan Rooney get?
Dan Rooney became the U.S. ambassador to Ireland.
Did Dan Rooney have any problems while he was the U.S. Ambassador to Ireland?
Are there any other interesing aspects about the Dan Rooney article?
Dan Rooney's team received $5 million in state funds for a new, $12 million amphitheater, in addition to the $158 million in public subsidies to build Heinz Field.
Did Dan Rooney have other careers after he resigned as ambassador to Ireland?
No

Question: What is the most important event in the article?
Self-contained rewrite: What is the most important event in the Dan Rooney article?