You're just starting work on a major home improvement project when your insurance agent calls. "You need more coverage," he says. But the real question is: How

You're just starting work on a major home improvement project when your insurance agent calls. "You need more coverage," he says. But the real question is: How did he even know you were building an addition? Did he smell the sawdust or hear the hammer? Neither. Thanks to a supercomputer owned by LexisNexis, the data analytics subsidiary of London-based RELX Group (RELX), your insurance company knows so much more than that. "Very little in your life isn't known," said Victor Bayus, who runs the new Active Insights program at LexisNexis. It enables other companies to "predict, assess and manage risk." ... In a world where every keystroke is often recorded, don't think for a second you can remain anonymous.