But you can be sure of one thing if the capricious Mr Kim is persuaded back to the table.
One thing you can be sure of, though, is that current mortgage rates really do offer an exceptional opportunity.
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You can be sure of it because central banks seem willing to let it play out this time as in days of old, without intervention.
Whatever their failures, you can be sure of one thing: however exemplary you think your child-rearing has been, many of your acquaintances will be convinced you are somehow to blame.
If banks are not making a lot of effort to court even the middle-class consumer, you can be sure the issue of serving the unbanked will not be addressed for a long time.
That way, you can be sure that none of the pots, pans or utensils touched a problematic food in the preparation of the meal.
If you buy dinner from a three-star Michelin restaurant you can be confident of getting a good meal, but today if you buy a bond from an AAA-rated borrower you can be rather less sure of getting your money back.
And while people with concerns over privacy will not install Facebook Home, you can be sure that hundreds of thousands of people being told that their phone can be a better with Facebook Home will rush for the download.
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But the methodology and sample size are such that you can't be too sure of the Scottish figure.
Whatever the result is on Tuesday, you can be sure to see more of those type of posts, with Johnson himself holding court in the comments underneath.
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"The prosecution say that Mr Cowan fits that profile perfectly, and the prosecution say that you can be sure - all 12 of you, beyond reasonable doubt - that Mr Cowan was the gunman, " he said.
If a polluted water sample contains a strain of E. coli that is not found in humans, you can be pretty sure that sewage is not the source of the pollution.
So, I mean I want to think and to watch developments on this and you can be sure that I'm mindful of my obligations but I also to have to take into mind what a reasonable man would do with commonsense in the light of developments.
BBC: News | BREAKFAST WITH FROST | Dr John Reid MP, Secretary for Northern Ireland
If you do your part now by giving as generously as you can, you may be sure that we will do ours, to the lasting benefit of this generation and those to come.
With the stock market shut down today for the Martin Luther King holiday, the reaction from the analyst community has been fairly limited so far, but you can be sure that there will be a burst of commentary tomorrow morning, and another round Wednesday morning after the company reports December quarter results after the close on Tuesday.
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You can be sure that he does not take the strength of the nationalist vote at face value.
And of one thing you can be sure, consumers do not look to commodities in their search for delight.
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Nice idea, but in this day of sophisticated attacks you can be sure that hackers are already inside the network behind the firewall.
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While they are also hoping to get picked up by networks looking for an alternative to the big three of iOS, Android, and Windows Phone, you can be sure that their own handset (due out in 2014) is going to be sought after from a small part of the smartphone world.
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You can be sure that as WiMax is rolled out, all of these manufacturers will be looking into incorporating WiMax operability.
If you can't stand humidity, be sure to steer clear of Quillayute and Olympia, in the state of Washington, which both average about 80% humidity during the year.
You can celebrate the work of your team, but be sure to credit your fans and never, ever publicly trash your detractors, especially if they used to work for you.
If governments react to freedom movements by immediately moving to limit internet access, you can be sure that getting more internet access into the hands of the people is a good thing.
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When Jackie Earle Haley, known of late for playing deviants and psychopaths, shows up in "Lincoln" as a representative of the Confederacy, you can be sure his cause is as wrong as it is lost.
He's got a tape machine that blasts generic heavy metal music into his helmet (soundtrack stacked to the ceiling at a record store near you, you can be sure) while he shoots up an entire section of Los Angeles.
And we will not be satisfied -- you can be sure -- if only one or two or three of them pass -- because all of them should pass.
You will not see an announcement on subsidies until the government can be sure most of the money will support domestic brands.
You can be sure that we want to strike the right balance between expanding coverage of preventive services and respecting religious beliefs.
The case is simple to state: can you be sure that Junior Andrews was sat in the front passenger seat of that car at the time a fatal shot was fired?
BBC: NEWS | UK | England | Nottinghamshire | Defendant denies killing Danielle
You can't be absolutely sure, but it seems to me the benefit of doing this is overwhelmingly good that it meets the intentions of the persons who kept papers not to embarrass themselves or do harm to others.
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