Giventhe size of the U.S. population and the number of newspapers published across the country, we found that there is relatively little published about GM food that is informative and substantially about the topic. As the following    analysis and case study will confirm, the American consumer has a limited opportunity to learn about food biotechnology from the mass media until an incident results in the death of living organisms.

这句话说美国媒体对转基因报道量很少，因而公众很难从媒体获得有关转基因的知识，除非发生了死亡事件。相比之下，中国对转基因的报道似乎总在未雨绸缪着什么。这也许是从上之下的媒体传播体系和从下至上的媒体传播体系的不同所引起的？