However, their young age makes it difficult to determine whether this is definitely the case.
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The secrecy makes it difficult to determine how often such court orders are used.
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Xinhua news agency's Seoul correspondent says North Korea's reaction is "difficult to determine".
It might even be difficult to determine what crimes a prisoner has been charged with, Toobin said.
Even knowing that Khan was poisoned, it may be difficult to determine how the cyanide got there.
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But it is not difficult to determine which company most angered its creditors.
The costs to implement VoLTE are difficult to determine, said Jeremy Green, an analyst with London-based tech consulting firm Ovum.
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Intentionality was difficult to determine from the data -- some of the self-inflicted wounds were suicide, while others appeared accidental in nature.
It is difficult to determine an exact number because of a lag time in official counts and differences in the states' standards.
It's difficult to determine if chemical weapons have been deployed, unless you can recover a munition that retains traces of agent, said Martin.
In other words, it can be difficult to determine exactly how much time a person could spend in prison unless you are an expert.
When faced with planning a new data center the question of how much space will be needed is potentially the most difficult to determine.
Since there were no independent financial advisers on either side evaluating the deal, it was very difficult to determine what Vickers was actually worth.
Unfortunately, it's difficult to determine how aggressively Alcatel plans to push these devices, as the company hasn't announced pricing for any of the handsets.
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It's difficult to determine height accurately, it was maybe three or four hundred feet, quite a bit lower than helicopters would normally fly at.
Whether other outbreaks have occurred because of contaminated soda machines is difficult to determine, because food-related illnesses are notoriously challenging to pinpoint, Godard said.
In addition, Was said, the fuel rods are likely in a state of "partial melt, " the extent of which will be difficult to determine.
Given that indirect costs such as the effects of lost innovation or productivity are notoriously difficult to determine, such figures can further understate the total regulatory burden.
Detective Superintendent Chris Bourlet of the Met's Child Protection Central Command told Newsnight reporter Angus Stickler the scale of the problem was difficult to determine.
While many investors clearly understand that low rates will not last forever, it becomes more difficult to determine exactly how this will affect any given portfolio.
He said it was difficult to determine how long the remains had been there, but said detectives feel it was sometime before Superstorm Sandy struck in October.
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It's often difficult to determine that an illness is a direct result of pesticide poisoning, yet many studies link a wide variety of health problems to such exposure.
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However, it remains very difficult to determine when exactly these stars were born or much else about them, since their faraway light is largely obscured by closer sources.
Just how large such obligations loom is difficult to determine.
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It is difficult to determine the full extent of people going missing because of corruption among police officers and troops, according human rights observers and families of those missing.
"We have not determined whether he had any anti-Israeli views, " FBI agent Richard Garcia told news conference on Friday, saying it was still "very difficult to determine the exact motive".
The coroner said the attorney general's office has requested autopsies but, because of the condition of the bodies, it may be difficult to determine why so many patients died at Memorial.
His fellow Sheffield Brightside MP and former Home Secretary David Blunkett said it was difficult to determine who, outside of the family, could have been expected to take steps to intervene.
The spread was likely purchased by the investor, although direction in this case is more difficult to determine as both legs of the transaction traded to the middle of the market.
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