Secretary of Defense Donald Rumsfeld, General Richard Myers, vice chairman of the Joint Chiefs of Staff, and several other senior Pentagon officials move from the National Military Command Center (NMCC) to the Executive Support Center (ESC) due to the poor air quality in the NMCC. [Goldberg et al., 2007, pp. 132; Myers and McConnell, 2009, pp. 156-157] Since around 11:00 a.m., Rumsfeld, Myers, and a small number of their colleagues had been in the Joint Chiefs of Staff conference room within the NMCC, participating in a secure video teleconference (see (11:00 a.m.) September 11, 2001). [Historical Office, Office of the Secretary of Defense, 4/9/2003 ; Myers and McConnell, 2009, pp. 155] As the teleconference progressed, they started feeling unwell, and an air quality specialist with the Arlington County Fire Department subsequently came and told them that the oxygen level in the conference room was dangerously low (see (After 12:00 p.m.) September 11, 2001). [Rumsfeld, 2011, pp. 340; George C. Marshall European Center for Security Studies, 8/3/2012; Graff, 2019, pp. 277-278] Fortunately, Vice Admiral Edmund Giambastiani Jr., Rumsfeld’s senior military assistant, who had been participating in the teleconference, found that the ESC was smoke-free. Those in the conference room consequently relocate there. [Myers and McConnell, 2009, pp. 156-157] The ESC, on the third floor of the Pentagon, is a secure communications hub with a video teleconference facility. [Vogel, 2007, pp. 440] It also has its own air-conditioning system. [Historical Office, Office of the Secretary of Defense, 8/1/2002
] Once he has settled there, Myers passes on Rumsfeld’s authorization for a partial Reserve call-up. Those activated include fighter pilots, air tanker crews, and communications specialists. “With the country suddenly at war, we would need all the help we could muster, and much of that help was in the Reserve and National Guard,” Myers will later comment. [Myers and McConnell, 2009, pp. 157]