The Committee on Foreign Investment in the United States (CFIUS) is comprised of nine members, two ex officio members, and other members as appointed by the President representing major departments and agencies within the federal executive branch. While the group generally has operated in relative obscurity, the proposed acquisition of commercial operations at six U.S. ports by Dubai Ports World in 2006 placed the group's operations under intense scrutiny by Members of Congress and the public. Prompted by this case, some Members of the 109th and 110th Congresses questioned the ability of Congress to exercise its oversight responsibilities given the general view that CFIUS's operations lack transparency. Other Members revisited concerns about the linkage between national security and the role of foreign investment in the U.S. economy. Some Members of Congress and others argued that the nation's security and economic concerns have changed since the September 11, 2001, terrorist attacks and that these concerns were not being reflected sufficiently in the Committee's deliberations. In addition, anecdotal evidence seemed to indicate that the CFIUS process was not market neutral. Instead, a CFIUS investigation of an investment transaction may have been perceived by some firms and by some in the financial markets as a negative factor that added to uncertainty and may have spurred firms to engage in behavior that may not have been optimal for the economy as a whole. On July 12, 2016, Senator Charles Grassley introduced S. 3161 to include the Secretary of Agriculture as a permanent member of the CFIUS and to include the national security impact of foreign investments on agricultural assets as part of the criteria the Committee uses in deciding to recommend that the President block a foreign acquisition.

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