And polls and studies have repeatedly shown that Americans are indifferent to privacy concerns. The general defense for such indifference is summed up a single phrase: I have nothing to hide. If you have nothing to hide, why shouldnt the government be able to peek at your phone records, your wife see your e-mail or a company send you junk mail? Its a powerful argument, one that privacy advocates spend considerable time discussing and strategizing over.

　　It is hard to deny, however, that people behave different when theyre being watched. And it is also impossible to deny that Americans are now being watched more than at any time in history.

　　1. In the first paragraph, the telephone number is cited to show

　　A. many customers didnt keep their privacy confidential.

　　B. it is harmful to give a store clerk a telephone number.

　　C. careless disposal of personal information can be harmful.

　　D. customers should inquire its use when giving telephone numbers to others.

　　2. What do companies like Acxiom and Merlin do?

　　A. Compile telephone directories for businessmen.

　　B. Collect and sell personal information to make a profit.

　　C. Trade commodities like corn on the market.

　　D. Crack down crimes like stealing private information.

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