would mean attacking Libya.

"Let's call a spade a spade," Gates said at a House Appropriations subcommittee hearing. "A no-fly zone begins with an attack on Libya to destroy the air defenses."

"It's a big operation in a big country," he added.

Schieffer pressed Kerry on the no-fly zone implementation, noting Gates' warning.

"[Gates] says basically that's going to war, because he says if you're going to have a no-fly zone, you've got to go in there and bomb their anti-aircraft installations there, that you're going to be bombing the country," the CBS host said.

"That's actually not the only option for what one could do," Kerry replied. "One could crater the airports and the runways and leave them incapable of using them for a period of time."