In the U.S., courts are governed by state law over whether to honor foreign judgments, and evidence of fraud or a hopelessly corrupt court system is one key factor they consider.

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One key difference from the current system, which involves selling the underlying loans to Fannie Mae and Freddie Mac is that, with covered bonds, the loans stay on the balance sheets of the banks.

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One key contribution would be the landing system that places the rover on the surface of the Red Planet.

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But the key section is probably the one dealing with the Special Educational Needs system.

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One key characteristic that distinguished Apple was that it had its own operating system.

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Moreover, one of Mr Karzai's key aims has been to destroy a system under which tribal warlords rule their own province.

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In fact a balanced copyright system, including fair use, is one of the key reasons why products like search engines, YouTube, Facebook, and thousands of other Internet companies are commercially viable in the first place.

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One large aspect of tribal knowledge is an understanding of the key points in a system that should be checked if anything goes wrong, or the key points in a system that must be monitored to make sure that the system stays healthy.

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One of the key difficulties in overcoming the Euro debt crisis is that the current financial system is characterized by a close symbiosis between national governments and national banking systems.

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Microsoft, which counts Dell among the key distributors of its Windows operating system, said it made the investment to help ensure the future of one of its most important partners.

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