General Ralph Eberhart, the commander of NORAD, realizes the US is under attack after he sees Flight 175 crashing into the World Trade Center on television and then considers whether he should go to NORAD’s Cheyenne Mountain Operations Center (CMOC). Eberhart was at his home in Colorado when he learned about the hijacking of Flight 11 and then went to his office at NORAD’s headquarters at Peterson Air Force Base in Colorado Springs (see (8:45 a.m.-9:00 a.m.) September 11, 2001). In his office, he sees the second hijacked plane, Flight 175, crashing into the WTC live on television at 9:03 a.m. (see 9:03 a.m. September 11, 2001). He is unaware that a second aircraft has been hijacked, but realizes immediately that a coordinated terrorist attack is taking place. Right away, he tries to contact General Henry Shelton, the chairman of the Joint Chiefs of Staff, but is unable to do so, because Shelton is currently airborne, being flown to Hungary for a NATO conference (see 7:15 a.m. September 11, 2001). Eberhart then tries contacting General Richard Myers, the vice chairman of the Joint Chiefs of Staff, and is able to reach him on Capitol Hill, where he has been meeting Senator Max Cleland (D-GA) (see (Before 9:30 a.m.) September 11, 2001). Eberhart then focuses his attention on determining whether he should stay at NORAD headquarters or go to the CMOC, which is about 30 minutes’ drive away from Peterson Air Force Base. He initially decides to stay in his office. This, he will say, is because the CMOC is already well manned and also because there are “dead spots” in which he would be out of phone coverage for five to 10 minutes at a time during the drive to the operations center. However, Eberhart subsequently decides to go to the CMOC. He will tell the 9/11 Commission that he leaves his office to head there at approximately 9:30 a.m., during a lull in transmissions on a teleconference, which he is presumably listening to. [9/11 Commission, 3/1/2004; 9/11 Commission, 3/1/2004 ; 9/11 Commission, 3/1/2004; 9/11 Commission, 3/1/2004] He will experience problems receiving phone calls while he is traveling to the CMOC (see (Between 9:35 a.m. and 10:35 a.m.) September 11, 2001). [Colorado Springs Gazette, 6/16/2006; Denver Post, 7/28/2006]