"The United States was attacked on 9/11/12, and we know who attacked us." — Leon Panetta

When the president went around the table to the country's national security leadership, Hillary was clear: We have to go get bin Laden. And our Special Operations Forces did just that.

An aggressor nation or extremist group could gain control of critical switches and derail passenger trains, or trains loaded with lethal chemicals.

The United States is going to defend itself under any circumstances.

These days, it takes only seconds - seconds - for a picture, a photo, to suddenly become an international headline.