If air traffic controllers believed Flight 11 had been hijacked at 8:13, NORAD should have been informed immediately, so military planes could be scrambled to investigate. However, NORAD and the FAA both claimed NORAD was not informed until 8:40—27 minutes later. [ NORAD, 9/18/01 , AP, 8/12/02 , AP, 8/19/02 , Newsday, 9/10/02 ; one NORAD employee said it took place at 8:31, ABC News, 9/11/02 ] Indeed, before contacting NORAD, Boston air traffic controllers watched Flight 11 make an unexpected 100-degree turn and head south toward New York City [ Christian Science Monitor, 9/13/01 ], told other controllers of the hijacking at 8:25 [ Guardian, 10/17/01 ], continued to hear highly suspicious dialogue from the cockpit (such as, “Nobody move, please, we are going back to the airport. Don’t try to make any stupid moves” ) [ Guardian, 10/17/01 , New York Times, 10/16/01 ], and even asked the pilots of Flight 175 to scan the skies for the errant plane. [ Guardian, 10/17/01 , Boston Globe, 11/23/01 ]
These are not the only controversial points to arise in connexion with tea drinking, but they are sufficient to show how subtilized the whole business has become. There is also the mysterious social etiquette surrounding the teapot (why is it considered vulgar to drink out of your saucer, for instance?) and much might be written about the subsidiary uses of tealeaves, such as telling fortunes, predicting the arrival of visitors, feeding rabbits, healing burns and sweeping the carpet. It is worth paying attention to such details as warming the pot and using water that is really boiling, so as to make quite sure of wringing out of one's ration the twenty good, strong cups of that two ounces, properly handled, ought to represent.
Longer essays may also contain an introductory page that defines words and phrases of the essay's topic. Most academic institutions require that all substantial facts, quotations, and other porting material in an essay be referenced in a bibliography or works cited page at the end of the text. This scholarly convention helps others (whether teachers or fellow scholars) to understand the basis of facts and quotations the author uses to support the essay's argument and helps readers evaluate to what extent the argument is supported by evidence, and to evaluate the quality of that evidence. The academic essay tests the student's ability to present their thoughts in an organized way and is designed to test their intellectual capabilities.