There is uncertainty about whether some European governments can service their outstanding debt obligations.
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There is uncertainty in sending a manned mission to the moon, yet that happened.
However, there is uncertainty over its future as the leader in the phone industry.
In every direction there is uncertainty, fear, trepidation, and yes, a substantial perception of risk.
There is uncertainty about how common such infections are, since no clearinghouse compiles statistics on their incidence.
Now there is uncertainty in the industry because of proposed changes to the foreign worker visa program.
There is uncertainty behind the scenes and it takes a tough squad to perform despite the off-field distractions.
What is more, while there is uncertainty is some aspects of climate science there there is much less in others.
And there is uncertainty about how bottlers will adapt to the increased flexibility that Mr Daft is demanding of them.
There is uncertainty, but take personal ownership of what you can control.
There is uncertainty over what will happen to the 23-game deal that Setanta has already won for the three seasons starting in 2010-11.
His manager, Joe Girardi, acknowledged that there is uncertainty there, and that the Yankees really won't know until they see Jeter in the field.
Today, there is uncertainty about regulatory policy, uncertainty about monetary policy, uncertainty about foreign policy and, most significantly, uncertainty about U.S. fiscal policy and the national debt.
While there is uncertainty in official circles about the accuracy of the Iraqi announcement, Iraq is known to have vigorous programs underway in each of these areas.
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But it admits there is uncertainty about the production estimates.
But the CPS cannot proceed with charges until the police investigation is complete, and there is uncertainty over which charges may be applicable given there may be no "victim" in law.
The fact that it is not a formal treaty means that there is uncertainty as to whether the usual rules on what the various EU institutions may or may not do apply.
Like Sunderland, there is uncertainty over the position of their manager - Alan Shearer accepted the role on a temporary basis back in April and remained distinctly undecided about his future after Sunday's game.
The precautionary principle states that, if there is uncertainty regarding the effects of exposure to an agent, the burden of proof that exposure does not cause harm falls on those who utilize the agent.
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The financial case for immediate disclosure of the bank fund-raisings is that there is uncertainty about which banks need what - and it would help investors' confidence for them to know which banks are seen as weakest.
The former rules on lbw decisions, no-balls, wides and leg byes, while the latter assists with stumpings and run outs and may help on the question of whether a catch has carried or not if there is uncertainty.
There is uncertainty on both sides.
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Though there is uncertainty about just how common such infections are since no clearinghouse compiles statistics on their incidence, Dr. William Schaffner, chairman of the Department of Preventive Medicine at the Vanderbilt University Medical Center, estimates there are fewer than 250 cases every year in the United States.
"But there is great uncertainty about what is going to happen next, " she added.
There is no controversy, there is no uncertainty about the entitlement of that distinguished public servant to be buried at Arlington National Cemetery.
And all of this is sort of coming together at the same point of time and there is tremendous uncertainty about what future China is going to emerge out of this.
Will long-term forecasting is, of course, inherently difficult and there is extreme uncertainty about a commodity like oil that is affected by, and has an effect on, the overall health of the global economy.
Vance Rowland, president of AOneATM, says few of his company's 3, 000 ATMs will meet the deadline because there is still uncertainty about some of the software that is required to accept the chip-based transactions.
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