The Pentagon and White House are chewing over what to do about fitness tracking apps, in wake of the news last week that a global heat map posted online by Strava could be used to identify the whereabouts and activities of military personnel, including those in conflict zones and other sensitive areas such as the halls of the National Security Agency. A heat map transforms data into a map in which values are represented by colors, which in this case includes the location of fitness trackers carried by government employees. […]