When the suicide-prevention organization Samaritans launched a Twitter app Oct. 29, they called it “an online safety net.” The Samaritans Radar app scans tweets from accounts a user is following, looking for phrases that may indicate a person is at risk for suicide. Once the risk is identified, the app alerts the subscriber via email, sharing the cause for concern and suggestions for reaching out and offering support.

Since then, the backlash the group has faced from both those concerned about…  [more]