This is a difficult point to ignore.

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This is a point very difficult to understand for industry producers, according to Valenzuela.

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Just how great would be the adverse impact of such a development on intra-alliance relations is difficult to calculate with confidence at this point due to a number of imponderables.

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This is a difficult time for many Americans, and we need a leader to point America in a new direction, one that renews us, strengthens us for the journey, and gives us hope.

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To make this case in any courtroom would be very difficult for a prosecutor -- who point out that it is difficult, if not impossible, to put on a successful prosecution if the chief witness is deemed by the prosecutors to be unreliable on some issues, but presented as totally truthful on others.

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