In 2001,al-Qaida boasted that it had carried out the October 2000 bombing of USS Cole while the destroyer was refueling at a port in southern Yemen.

VOA: standard.2010.01.07

While in opposition, the Democratic Party of Japan tried to block the country's Indian Ocean refueling mission for U.S.-led forces in Afghanistan, but agreed not to disrupt the mission before it expires in January.

VOA: standard.2009.08.31

But Secretary Gates on the first visit to Tokyo by a senior U.S.official since the new Japanese government took office - says he will remind the new Japanese leaders that Afghanistan is a NATO and coalition effort and that Japan's refueling mission did more to help other countries than it did to help the United States directly.

VOA: standard.2009.10.20

For example, the 10, 000 mile range of the B-2 (with one refueling) allows it to execute missions worldwide from just three strategically located bases.

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That intelligence helped mechanics know how the car was performing and allowed them to plan better for the maintenance they'd do when it stopped for refueling.

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Finally, there are some real costs that the rental companies are passing on: Airports charge high rents to tenants like car rental agencies, so the cost of maintaining a special area for refueling is somewhat higher than it is for a typical highway gas station.

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