"I'm not sure you can even call this a double-dip, because I'm not sure we ever got out of the first dip, " says Radar Logic Chief Executive Michael Feder.
Select up to five teams to follow so you can be sure not to miss a beat on your favorite teams and players.
ENGADGET: Microsoft announces NHL GameCenter availability on Xbox Live
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.
"We're doing everything we can to make sure pupils are not disadvantaged - giving them as much support as we can, " he said.
BBC: Isle of Wight Council suspensions over Cowes college delay
"I'm not sure he can make up that kind of ground between now and Tuesday, " Adair said.
I'm still not sure I can bring myself to try oranges again though...
BBC: Children with allergies 'being let down': Your comments
Not that they can be sure of answers: still officially a navy man, he is entitled to stay silent.
And so sometimes people think, well, I'd like to do it but I'm not sure I can make the commitment.
"I'm not sure I can explain how excited I am to have won this tournament, " Kuchar told the PGA Tour's official website.
"I'm not sure they can ever be a consumer powerhouse, " she says.
You're the ones that made Engadget something that people cared about, and I'm not sure I can properly express my gratitude for that.
"I'm not sure you can break Japan out of deflation with just moving the currency, " said Jan Dehn, co-head of research at Ashmore Investment Management Ltd.
The legal billing system will evolve and improve, but, as with most legal matters, we can be sure it will not be without a well-argued debate.
Defence lawyers also filed an emergency motion on Thursday asking to halt proceedings until they can be sure officials were not eavesdropping on communications with their clients.
"There used to be two staircases and I remember at one point standing here and thinking 'we've knocked all this down and we're still not sure we can make this work', " he said.
"Shawn is doing all the right stuff, but I am just not sure you can snap your fingers and all these new shoppers will start running to Best Buy, " said Colin McGranahan, retail analyst at Sanford C.
I'm not sure I can remember a time when both the chancellor and his shadow have had to be quite so careful of their internal doubters, and that's what will make the undercurrents at those Treasury Question Times so interesting.
"With technology being what students need to learn in order to participate in a global world and economy, I'm not sure schools can forfeit the time to teach cursive, unfortunately, " said Paige French, an eighth-grade history teacher in Dallas, Texas.
We're now pushing the banks as hard as we can to make sure that not only do they do the most with the resources that we've been giving them, but that they also do a much better job of customer service with people who are coming to them.
I'm not sure if we can do that another night with the current resources.
Ireland have to prove it was a fluke - but I'm not sure if they can.
"The first time, you're not even sure you can do it, " he said in the interview.
You can be sure that he does not take the strength of the nationalist vote at face value.
So I'm not sure that I can gauge his reaction to those comments.
WHITEHOUSE: Press Briefing by Deputy Press Secretary Josh Earnest
And of one thing you can be sure, consumers do not look to commodities in their search for delight.
FORBES: Customer Loyalty Engagement Index 2012 Commandment: Delight Thy Customer
If you are not sure whether you can access the internet on your device, check with your mobile network provider.
"Wyeside is 30 this December and we're not sure if we can make it stay open until our 30th birthday, " he said.
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