NATO commander says social networking needed for security. NATO Supreme Allied Commander Europe James Stavridis, left, urged a new era of “open-source security,” inviting TEDGlobal participants to friend him on Facebook. Adm Stavridis, who also tweets and blogs, spoke of the need for greater dialogue and partnerships between public and private sectors. He said that 21st century national security could “not be delivered solely from the barrel of a gun”. Offline partnerships, such as US troops teaching Afghan security forces to read or US navy ships offering medical services to the local communities, needed to be complemented with online dialogues on social networks, he said. Via BBC News Image source )