J. Daniel Howard Carlucci and his deputy, General Colin Powell. Howard focussed on arms control issues and remained through the signing of the Intermediate-Range Nuclear Forces Treaty in January 1988. He also dealt with many issues associated with the Iran–Contra affair. On December 21, 1987, President Reagan nominated Howard to serve as Assistant Secretary of Defense (Public Affairs) and Howard would hold this post from February 1988 through May 1989. He worked for Secretary of Defense Frank Carlucci and dealt with the aftermath of the shooting down of Iran Air Flight 655 by the U.S.S. "Vincennes" and the explosion of a gun mount
Assistant Secretary of Defense for Nuclear, Chemical & Biological Defense Programs Reduction Program (CTR). The Director of DTRA reports directly to the Assistant Secretary of Defense for Nuclear, Chemical & Biological Defense Programs. Before the National Defense Authorization Act for Fiscal Year 2011 on January 7, 2011, the Assistant Secretary of Defense for Nuclear, Chemical & Biological Defense Programs was known as the "Assistant to the Secretary of Defense for Nuclear & Chemical & Biological Defense Programs". Three Deputy Assistant Secretaries of Defense report to the Assistant Secretary of Defense for Nuclear Chemical & Biological Defense Programs: In addition, the Director of the Defense Threat Reduction Agency reports directly to the