Have countless data breaches and unfettered government surveillance left you nervous about doing things online? You're definitely not alone. The US National Telecommunications and Information Administration has conducted a survey revealing that nearly half of the Americans it surveyed (41,000 homes) have scaled back their internet activity over privacy and security fears. About 29 percent have avoided online finances, while 26 percent skipped online shopping. A similar amount decided against posting on social networks, and 19 percent even decided against offering "controversial" opinions online.