; (2) describe the nature and total funding of infrastructure investments and construction by the People’s Republic of China in Middle East, African, and Latin American and Caribbean countries; (3) assess the national security threats posed by the infrastructure investment gap between the People’s Republic of China and the United States and United States allies and partners, including— (A) infrastructure, such as ports; (B) access to critical and strategic minerals; (C) digital and telecommunication infrastructure; (D) threats to supply chains; and (E) general favorability towards the People’s Republic of China and the United States and United States’ allies and partners among Middle East, African, and Latin American and Caribbean countries; (4) assess the opportunities and challenges for companies based in the United States to invest in infrastructure projects in Middle East, African, and Latin American and Caribbean countries; (5) describe options for the United States Government to undertake to increase support for United States businesses engaged in large-scale infrastructure projects in Middle East, African, and Latin American and Caribbean countries; and (6) identify regional infrastructure priorities, ranked according to United States national interests, in Middle East, African, and Latin American and Caribbean countries. 6704. Special envoys (a) Review Not later than 180 days after the date of the enactment of this division, the Secretary shall conduct a review of all special envoy positions to determine— (1) which special envoy positions are needed to accomplish the mission of the Department; (2) which special envoy positions could be absorbed into the Department’s existing bureau structure; (3) which special envoy positions were established by an Act of Congress