Just months before the Doha ministerial, the United States had been attacked by terrorists on September 11th, 2001. Some government officials called for greater political cohesion and saw the trade negotiations as a means toward that end. Some officials thought that a new round of multilateral trade negotiations could help a world economy weakened by recession and terrorism-related uncertainty. According to the WTO, the year 2001 showed "...the lowest growth in output in more than two decades," and world trade contracted that year.