Bush, in his second debate with Kerry, said the country is looking for other sources of vaccine, but he said that is difficult because vaccine makers are afraid of getting sued and had "backed off" from providing vaccines.
Let's pray if he is confirmed that he is up to the difficult job ahead of him.
It will be noted if the player has had drug issues, arrests, work ethic concerns, problems with coaching, and perhaps even that he is represented by an agent that is difficult to deal with.
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There is a lot of pressure on the player, so he is in a very difficult situation right now.
But is he leaving the difficult decisions to his final few weeks?
But he says it is often difficult to tell which leads have come from spam texts, and which have come from legitimate research of customers who have given permission to be contacted.
The puzzle is that he also argues that difficult reform should be done early, while public opinion is still on his side.
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Given the shortage of qualified black engineers and accountants, this is difficult, he admits.
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Although the comparison is difficult, he thinks that Stanford is ahead because it has a different industry focus than MIT.
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The fact that he is 71 also makes it difficult for him to cast himself as an agent of change.
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It felt like an awkward first date, but he showed he is not afraid to address difficult subjects in front of a skeptical audience.
Studying how the parasite interacts with its insect host is difficult, he said, because the mosquito's biochemical and genetic make-up are not well defined.
He also reminded how difficult is reforming a State broadcaster's beurocracy.
He read a short statement from Nathan Chapman's wife, Renae, who he said is "having a difficult time, as you might imagine" and opted not to meet with the media.
Despite his simple words and laconic sentences, he is one of the most difficult Russian authors to translate for the simple reason that so much remains hidden between his words.
But he added that his decision on whether to grant federal funding for embryonic stem cell research is the most difficult choice he has to make, because of the dilemma between moral issues of creating human embryos to produce stem cells and the promise from doctors and scientists the research will save human lives.
He says "10, 000 BC" is without a doubt the most difficult film he's ever made.
He said the pancreas is also a difficult organ, from which to remove cells.
According to Ed Koch, a former mayor, Mr Giuliani is no racist, he is just incapable of not inflaming difficult situations.
Taking the king to court would be difficult, since he is above the law, so Ms Dlamini is suing his two emissaries instead.
"One on one he is very dogged and determined and difficult to get past, " said Paul McGuinness, who coached him in United's under-18 side.
"Video search is difficult, " he says, explaining that most video search looks for descriptive text in tags attached to the video, which can be incomplete or misleading.
"The financial situation in south Wales is difficult, " he said.
Had Raikkonen been able to start from pole, there is every chance he could have converted that to victory, given how difficult it is to pass here.
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