SNIPPET: "Social media is no longer simply a fun way to share updates on the harmless idiosyncrasies of our lives. It can undermine national security, and there ought to be a more robust discussion between the Bay Area technology world and Washington on what to do about it. Cyber-terrorism, especially the potential for electronic tampering with U.S. industrial or military installations, is a paramount national security threat that Washington is working to forestall. We're all working to protect our accounts from hackers. But the cyber-threat getting far less public attention involves the social media networks we use every day and the...