In any event, if the majority of world opinion remains opposed to military action, it is likely to be difficult on the facts to categorise a French veto as "unreasonable".
Now, a commitment to interpersonal contact can be difficult to sustain on a global scale.
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Joel Greenberg, a partner at Kaye Scholer who specializes in mergers and acquisitions, believes the court ruling would be difficult to overturn on appeal.
"Things will be difficult from here on in, and what we ask is unity, from different sides, from disagreeing sides, but unity, " he told MPs.
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But the damage done -- bad morale, poor teamwork, ineffective execution of strategy -- can be difficult to quantify on corporate bottomlines, unless the psychopath veers into actual crime.
With fuel prices volatile and the economy chugging along at a steady but unspectacular pace, investments in new aircraft and updated facilities will be difficult without taking on new debt.
Officials say it would be difficult to clamp down on chasers amid the chaos of a storm.
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However, at present there is plenty of information not known by the public, making it difficult to be certain on this point.
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But being heard over the din of Labour's death throes - Nick Clegg's words not mine - will be difficult if not nigh on impossible.
Especially in a public setting, it can be difficult to get back on track, as your mind returns to the incident, and the blush, again and again.
As a novice biker, it took me time to adjust to the reality of such statistics and it was only after a couple of poorly equipped 25-mile rides that I realized it would be difficult to cut corners on cycling gear.
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"It was going to be difficult chasing 200 plus on a track where the ball is going up and down, " said Tendulkar, who was named man of the match and man of the series for scoring 403 runs at an average of 134.5.
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But proving just how much damage can be blamed on the oil spill will be a difficult task in the courtroom.
It can be difficult to draw conclusions based on these reports, because they are random.
"It will be very difficult to convict him on second-degree murder charges, " he said.
But it will be difficult to make much progress on reconstruction if the insurgency continues at its present intensity.
"It could be extremely difficult to get even on the top 100 list without ads and promotions then, " he says.
"However, if interest rates were to rise to 6% before the end of the year, a sharper slowdown and a difficult 2008 would be on the cards, " he warned.
And as both major parties look for advantages going into next year's election season, it may be more difficult to gain agreement on issues that Congress will face when members return in January.
"Making a decision that's good for the next two to three years and making a decision that's good for the next 20 to 30 years sometimes are at odds with each other, and being able to balance those two can sometimes be difficult, " Liddy said on the PBS program.
"Ninety minutes of Premiership football would be very difficult at the moment but to come on as a substitute would be no problem, " added Smith.
Although they fell to a surprise 9-8 defeat against Scotland at Murrayfield on Saturday, make no mistake Australia will be difficult customers when Wales try to finish their November campaign on a high.
Add to this the many other factors that could be having an impact on the stock market, and it may be difficult to filter through the noise and draw a definitive conclusion.
That means it will be difficult to hike general tax rates on this group.
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How difficult would that be to accomplish on the public transit system in your town?
Making a deal stick will be difficult if there's mayhem on the ground.
Bush also warned the nation that a war on terrorism will be difficult.
The Tea Party is a diffuse operation, and it can be difficult to pin down its stand on any given issue.
Meanwhile, ministers sent from London, or bodies appointed by them, could be relied on to take the difficult decisions on, say, school funding or hospital closures.
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