Letter: From Carl Hayden, to Stewart Udall, February 7, 1964, page 3-3- The failure of your Department to answer my questions relating to certain aspects of the regional plan has left me in the dark as to your intentions and has handicapped Congressional consideration of related questions. My letter of October 4, 1963, requested information on a number of specific aspects of the regional plan in relation to a then-pending appropriation bill. I again asked those questions by letter of November 1, 1963, and I have as yet to receive a reply. In response to my letter of December 19, 1963, urging submission of the Central Arizona Project report, you wrote back that to do so would in your opinion be breaking your commitment to Governor Brow...