The key is finding customers willing to pay a premium for its product, which could be difficult given the many options out there.
The next level we have is 1160, which could be somewhat more difficult given the exuberance we are now seeing in the market.
This could be more difficult in small economies which specialise in relatively fewer sectors.
Washington worries that such a strike could ignite a wider war in which it would be difficult for the U.S. to avoid getting involved.
He said the theory was sound, but it would probably prove very difficult to develop a machine which could be of practical benefit to patients, not least because liver cells did not survive for very long outside the body.
But the climate in which law-related work could be undertaken by outsiders has gone from difficult to prohibitive.
Residency applicants from foreign schools are likely to be squeezed out, medical educators say, which could make it more difficult to fill the nation's growing needs in primary care, which includes internal medicine, family medicine and pediatrics.
Clapper told the Senate Select Committee on Intelligence on Tuesday that it would be difficult to overrate the importance of cyber-warfare, which could devastate the U.S. economy and its infrastructure.
In addition, the modular design could make it more difficult to inspect and maintain key components, many of which would be located within the pressure vessel at the heart of the reactor, he said.
The second phase will be to track down the militants to their desert hideouts, which could prove a much more difficult task, he adds.
He added Wales could be left with a situation where there were fewer authorities, larger geographical areas which may lead to difficult access issues.
BBC: John Redwood hits back at Leighton Andrews schools jibe
Rather than simply deleting files - which could then be undeleted - the worm resets the file size to zero bytes, making them much more difficult to recover.
The spokesman added that in low visibility more space needs to be left between aircraft, which was difficult at Heathrow as it runs at almost full capacity - therefore delayed flights could not be rescheduled.
That would be extremely unpopular with the public, and politically very difficult to deal with, managers told the BBC, adding nothing would be implemented which could in any way endanger public safety.
We did hear some talk about a lower-priced iPhone, which we think could be launched when AAPL refreshes the iPhone 5 (the high screen cost of iPhone 5 could make it difficult to bring that phone into lower price points).
FORBES: Apple: Do iPhone 5 Production Cuts Suggest Soft Demand?
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