The comfort she showed when talking about a proposed pipeline that would supply the lower 48 states with natural gas from Alaska, contrasted sharply with her generally rote talking points on national security during the day's first interview with Gibson.
Palin has no previous foreign policy experience and her comments hewed closely to the McCain camp's established foreign policy positions on former Soviet nations joining NATO, and the threats posed from Islamic terrorists and a nuclear Iran.
When asked if Georgia joined NATO, whether the United States should go to war if the country was again invaded by Russia, Palin responded: "Perhaps so. I mean, that is the agreement when you are a NATO ally, is if another country is attacked, you're going to be expected to be called upon and help."
"And we've got to keep an eye on Russia. For Russia to have exerted such pressure in terms of invading a smaller democratic country, unprovoked, is unacceptable," she said.
Palin -- whose military experience is limited to her gubernatorial role as commander-in-chief of the Alaska National Guard, an organization with fewer members than there are citizens in the town of which she was mayor -- tried to tout her energy expertise in lieu of her lack of national security policy.
"Let me speak specifically about a credential that I do bring to this table, Charlie, and that's with the energy independence that I've been working on for these years as the governor of this state that produces nearly 20 percent of the U.S. domestic supply of energy, that I worked on as chairman of the Alaska Oil and Gas Conservation Commission, overseeing the oil and gas development in our state to produce more for the United States... but I want you to not lose sight of the fact that energy is a foundation of national security. It's that important. It's that significant," she said.
Palin, 44, whose political career began with the PTA and a city-council seat in Wasilla, told Gibson that she was up to the challenge of being McCain's vice president.
Palin said she knew immediately that she was prepared to run as vice president when McCain offered her the job. It is a core of shared values and drive that makes them a good team, she said.
"I answered [McCain] 'yes,' because I have the confidence in that readiness and knowing that you can't blink, you have to be wired in a way of being so committed to the mission, the mission that we're on, reform of this country and victory in the war, you can't blink."
"I thought yes right off the bat. … When he offered me the position as his running mate, the first thing I said to him was, 'Do you really think that I could help the ticket? Do you really think that I could help this country? Absolutely, I want to do this with you.'"
On Israel's right to defend itself against a nuclear-armed and bellicose Iranian regime, Palin agreed with McCain that the country had a right to take action.
"Well, first, we are friends with Israel and I don't think that we should second-guess the measures that Israel has to take to defend themselves and for their security."
Iran, she said, presented a threat not only to Israel but to "everyone in the world."