The people who have the skills and insight to answer this question will successfully sail along the surface of the changing world.

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Even if the Leaf does sell successfully, some question remains whether or not Nissan will actually make money on its new EV.

FORBES: Nissan's Green Leaf Runs On Red Ink

The question of whether modern democracies can successfully resist populist tyranny is raised and then abandoned within two paragraphs.

ECONOMIST: An Australian scientist explores where we are now

All of them were directed at addressing the question of why we had not successfully "connected the dots" in advance of the attacks.

CNN: Retired CIA officer: Fix the Agency

The question of how -- and how successfully -- Obama can translate his message of change into practical and effective policies is, thus, one that will have not simply profound national repercussions, but international ones as well.

CNN: All change: Can Obama save the U.S. economy?

You know, I can think of no greater minds than the ones in this room, and I mean that sincerely, to address the question -- one that if answered successfully will shape the expansion we need in an era in American history that follows and that will allow us to lead the world in the 21st century.

WHITEHOUSE: VP Biden on Economic Expansion for the Middle Class

But whether he can govern successfully enough to finish it remains an open question.

ECONOMIST: Peru

The question of whether Downing Street exaggerated the threat from Iraq, which was successfully batted away by John Scarlett, the head of the Joint Intelligence Committee, last month, has returned.

ECONOMIST: Politics

Even in a nation of Euro-enthusiasts, which has struggled hard and successfully to take part in economic and monetary integration, such a question was not likely to send anyone rushing to the polls.

ECONOMIST: Portugal