Secretary Kerry urges NATO to prepare a response if the Assad regime uses chemical weapons, a “red line” Israel and others allege the regime has crossed. But when do chemicals used as weapons become ‘chemical weapons’? Is this a meaningful distinction (pdf)?
Foreign Policy and Freedom House collect powerful images of non-violent resistance.
Dan Drezner and Jay Ulfelder both have primers for Twitter-curious academics and researchers. For those interested, the LSE Public Policy Group has a useful resource on the topic (pdf).