"It's true that it's impossible to completely defend against denial of service attacks and still be accessible, " says Marcus Ranum, chief security officer of Tenable Security.
It's not just something that's improper - it's impossible.
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Drugstore.com's Neupert said it's impossible to predict what this program will cost his company until more details are released.
At the same time, you know, when you're working on a story like this, you get very addicted to it and it's impossible to escape it.
And if you've already got one foot in the iTunes river, it's impossible not to appreciate it all... if only a little bit.
His Culture Minister, Tessa Jowell, who is overseeing the review of the BBC's charter, says it's impossible for the government to threaten the corporation's independence.
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This application might be the future as we've always imagined it, but until it arrives, it's impossible to know if it will ever dominate the present.
If an engineer says he'll deliver a product in September, Perlmutter may tell him "that's too late, it's impossible, " says Shmuel "Mooly" Eden, general manager of Intel's mobile platforms group.
But that's not to say it's impossible.
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They have no idea how much they've been hurt, and it's impossible to say how long it will take them to recover the trust.
You have to admire how that is pulled off so deftly and quickly - screenwriter Avril E Russell has a very good light touch - and it's impossible not to smile at it.
Mental health experts say it's impossible to say why they did it, but they say that people who kill themselves have an underlying psychological issue, such as depression or bipolar disorder, so it's not only about the money.
While it's possible to get somewhat proficient at tapping spots on a flat screen, most acknowledge it's impossible to get e-mail and other documents written as quickly as with physical keys.
"He said: "There used to be just four or five potholes, now it's so bad it's almost impossible to know where to start.
Prices are also 9% lower than at the big hospitals in town, says Jon Soderholm, the heart hospital's president. (Sanford says it's impossible to accurately compare prices.) The only thing that the heart hospital is guilty of, in Soderholm's mind, is having a 70% market share.
It turns the whole thing into more of a production, but it's impossible to roll the dough into balls when it's that sticky.
Given that there's no proof the players made this pact, it's impossible to know what their motives might have been.
It's impossible to look at Teixeira's situation without comparing it to a more complicated Yankee drama: the status of third baseman Alex Rodriguez.
While it's impossible to predict how a jury will judge Lay and Skilling, it's definitely possible to assess how S-Ox is working.
It's impossible to have a creature that physical and spiritual size in your home and not have it leave a gaping wound when it's excised.
"It's a big week and it's not impossible for us to win all three, " said Tootle.
We can speculate about the causes, but it's impossible to give a single definitive answer.
It's impossible to ignore the rain amid the partying and anticipation at Churchill Downs.
The rooms aren't labeled, and it's impossible to tell what's behind the scary mystery doors.
But former federal prosecutor Mark Rasch says it's impossible to make a phone number truly anonymous.
It's impossible in this day and age to cut yourself off from that stuff.
Amgen says it's impossible to make exact copies of biotech drugs and opposes automatic substitution.
That said, it's impossible to ignore that the Flex is partially geared toward the elderly.
It's impossible to believe he's passionate about this movie, but at least he's professional about it.
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