Many popular entertainers, including American TV show hosts Johnny Carson and David Letterman, are shy but feel more at ease when they're on stage or on camera, Zimbardo says.

很多受欢迎的艺人也很害羞，包括美国电视节目主持人约翰·卡森和大卫·雷德曼，不过在舞台上或面对镜头时，他们会很放松，辛巴杜说。

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U.S. Marine 1st SGT Ambroga Carson from 3rd Battalion, 6th Marine Regiment patrols in Marjah in Afghanistan's Helmand province on Wednesday Feb. 24, 2010. (AP Photo/David Guttenfelder)

图38.2010年2月24日星期三，在阿富汗赫尔曼德省的马尔扎，美国海军陆战队第6团3营的安布罗加•卡森（Ambroga Carson）上士正在巡逻。

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Johnny Carson and David Letterman went after Flutie, too, but he turned down both shows--no time.

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In lieu of flowers, the families of Skip Wells, Thomas Sullivan, David Wyatt, and Carson Homquist, the four Marines killed, are asking for the public to memorialize them by making donations to charities they were passionate about.

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David Harris(ph) and Jason Carson received master's degrees in business.

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