Google is making Gmail summaries more useful and adding a ‘Happening Soon’ tab EngadgetGmail’s new ‘summary cards’ find useful links and info buried in your emails The VergeDoes New Gmail Feature Pose A Security Risk For 2.5 Billion Android, iPhone Users? ForbesGmail users get new summary cards to track purchases, events CBS NewsGmail's new 'summary cards' help you take action on your emails, like tracking packages and checking into flights TechCrunch