The U.S. and Russia have been taking lots of jabs at each other. Russian President Vladimir Putin criticized President Obama's plan for a military strike in Syria, and the Russian leader then denounced American "exceptionalism" in a biting op-ed in The New York Times. Sen. John McCain, R-Ariz., fired back Thursday with his own op-ed in the Russian paper Pravda, entitled, "Russia Deserves Better Than Putin." Even Monday's shooting at the Navy Yard in Washington, in... (GunPolicy.org)