Secret Service officials and military advisers in Washington consulted a map and chose a spot for Bush to make a brief touchdown: Barksdale Air Force Base, outside of Shreveport, La.

华盛顿的特工长官和军事顾问们查阅了一张地图为布什选择了一个临时着陆点——路易斯安那的什里夫波特附近的巴斯克代尔空军基地。

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White House staff members, Air Force flight attendants and Secret Service agents all were subdued and shaken.

白宫的成员们，空军乘务员和秘密特工们都震惊了。

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The Air Force used the shuttle for secret missions.

空军使用航天飞机进行秘密任务。

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The number of Sentinels that the Air Force operates remains a closely guarded secret.

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The Air Force reportedly tested a number of top secret military jets, including the Stealth fighter, at this facility.

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Obama also discussed the "life in the bubble, " musing over how Secret Service agents would not let him walk 750 yards from Air Force One to the Costa Mesa fairgrounds, where some of the day's activities were to take place.

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