Ben Sliney, the national operations manager at the FAA’s Herndon Command Center, announces that the last of the aircraft inbound to the United States has landed. [Spencer, 2008, pp. 279] At 10:21 a.m., the FAA ordered the diversion of all international flights inbound to the US (see 10:21 a.m. September 11, 2001). Most flights that were close to US shores then headed for Canada, while other flights headed back to the airports they had come from. [Time, 9/14/2001; Federal Aviation Administration, 3/21/2002] In total, 239 diverted aircraft have landed at Canadian airports. Most of them had been heading to the US from Europe. [NAV Canada, 7/22/2005]