To suss out the characteristics of the most-compelling television ads, Harvard Business School professor Thales Teixeira conducted a series of experiments, in conjunction with the MIT Media Lab and Affectiva, a local emotion-tracking software company.

FORBES: Creating the Perfect Super Bowl Ad

For nearly a year, FBI agents had been tracking an Israeli businessman working for a local phone company.

CENTERFORSECURITYPOLICY: Center For Security Policy

In the UK, the availability of cheap GPS devices, and a mistaken belief that it was permitted under the Regulation of Investigatory Powers Act, led to covert tracking being used by public authorities, including local councils "without properly considering the application of the legislation, " according to watchdog the Surveillance Commissioners.

BBC: How much privacy can smartphone owners expect?