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Having spent a good portion of my career working for the U.S. Department of Defense , I am not ignorant of the military applications of space technologies , nor of the need to regulate the proliferation of certain capabilities , and missile technologies are prominent among these . For many of us who have spent a good portion of our lives teaching in public schools , the legacy of educational technology may be best summed up by Theodore Roszak in his book The Cult of Information , in which he observed that " we live in a time when the technology of human communication has advanced at blinding speed ; but what people have to say to one another by way of that technology shows no comparable development . But one day a group of 4 and 5 year olds set up a pretend ice-cream stand and spent a good portion of the afternoon serving each other imaginary treats . Democratic Sen. Zell Miller of Georgia delivered the Republicans ' keynote address Wednesday night , and he spent a good portion of it railing against Kerry for voting against the " very weapons system that won the Cold War and that is now winning the war on terror . She spends a good portion of the book considering the question of self-pity : the tendency we have , when confronted with death , to dwell on it , to obsess about it , to wallow in what we have lost . I have spent a good portion of the last two days , unsuccessfully , searching on line for such a definition .