I’m not the only one who believes, as I argued in my Examiner column today, that Barack Obama’s refusal to act in response to the use of chemical weapons in Syria — which he called a “red line” last August — is dangerous. A similar argument was made on MSNBC by former Clinton administration foreign policy spokesman Jamie Rubin. “In international diplomacy, a red line is a use of force,” Rubin said. “When you say ‘serious consequences’ that means the use of military power.”