The November attacks in Paris claimed by ISIS came from the convergence of two forces. One is Jihadism, a global and multifaceted socio-behavioral phenomenon. The other is ISIS, an organization that operates in the Levant and Mesopotamia. ISIS can occasionally project itself beyond its base by leveraging the Jihadist phenomenon, as it did in Tunisia, Egypt, or now France. But despite the global noise, ISIS should be read in its regional context.

My phone just flashed a New York Times update at me: "Donald Trump Calls for Barring Muslims from Entering the U.S."

The United States will not sacrifice Ukraine in pursuit of Russian cooperation in Syria, Vice President Joseph R. Biden Jr. assured Ukrainian leaders on Monday, even as the Obama administration tries to manage complicated diplomacy with Moscow.

Hoover Institution fellow Larry Diamond discusses President Obama's address Sunday night concerning the San Bernardino shooting and the steps the government is taking to address terrorist threats against the country.