Describe how surveillance of our telephones has changed over the years. explain what is different about how silicon valley companies have built their networks and what it means for the general public and law enforcement? explain why it is risky for tech companies to build a "backdoor". soghoian poses the question, "should billions of people be using devices that are wire-tap friendly?" explain why you think our devices should or should not be wiretap friendly.

Indicate whether each of the following companies is primarily a service, merchandise, or manufacturing business. if you are unfamiliar with the company, use the internet to locate the company's home page or use the finance web site of yahoo. 1. alcoa inc. 2. boeing 3. caterpillar 4. citigroup inc. 5. cvs 6. dow chemical company 7. ebay inc. 8. fedex 9. ford motor company 10. gap inc. 11. h& r block 12. hilton hospitality, inc. 13. procter & gamble 14. suntrust 15. walmart stores, inc.