Writer says murdered couple in Mexico may have been revenge for blogging on drug cartels . He says social media can do good in world , but disrupts too and is seen as threat by some . He says there 's tech world controversy over `` real name '' policy of some social networks . Writer : " I think it will be a big problem if you are not using your true identity to post things online.
Writer says murdered couple in Mexico may have been revenge for blogging on drug cartels . He says social media can do good in world , but disrupts too and is seen as threat by some . He says there 's tech world controversy over `` real name '' policy of some social networks . Writer : Tech firms must consider their duty ; U.S. media must amplify Mexican voices .