Historically, war journalists have embedded themselves with one side, which means the greatest threat comes from the clearly delineated enemy of that side.

Historically, maritime travelers had to pass around the entire mass of North and South America, including the bottom tip, the tempestuous Cape Horn, which was littered with shipwrecks.

Without an adequate response, an epidemic can develop into a pandemic, which generally means it has spread to more than one continent.

There's no question that jihad historically means war.

The greatest threat to freedom, as well as the most formidable enemy of it, is a supported cause against it.

Conflict photographers grapple with two worlds that are themselves often in conflict - the one where bombs fall and bullets fly, where adrenaline runs high, and the other, back home, which is comparatively secure, and where the big event of the day may involve selecting swatches of fabric for a new sofa.