Now an analysis by two San Diego researchers shows these concerns may be well founded.

现在两位圣地亚哥研究者的一项分析表明，这种担心是有根据的。

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Concerns about aircraft safety during the eruption of an Icelandic volcano in 2010 were well founded, according to a new scientific study.

通过一项新的的科学研究成果，在2010年冰岛的一座火山喷发期间的飞行器安全问题已经得到关注。

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These are all well founded concerns.

这些都是关切的问题。

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Security and availability are well-well-founded concerns, but CIOs and other executives looking at cloud need to take a close, hard look at another risk, something far more fundamental to their businesses.

FORBES: Cloud Computing: Nine Questions to Ask Before Casting Your Servers Aside

Unfortunately, despite these well-founded concerns, the United States agreed with its allies on Monday in Paris to join 41 other nations, including the Soviet Union, in the creation of the EBRD on very different terms than those called for by the AFL-CIO, the Center for Security Policy and leading members of Congress, such as Senator Robert Kasten (R-WI).

CENTERFORSECURITYPOLICY: Center for Security Policy | Center Cheers AFL-CIO Opposition To Soviet Membership In EBRD

Iran "will face ever-increasing economic and diplomatic pressure" until it answers the international community's "well-founded and well-documented concerns" about its nuclear programme, the Treasury said.

BBC: Obama tightens US sanctions on Iran