The stock market could tag on another 20 percent before valuations become a concern.
The Police Federation say delayed ambulances have become a concern in the East of England.
With the increasing use of technology and smartphones behind the wheel, driver distraction has become a concern.
As IT battles such threats on a daily basis, data and information security become a concern of the boardroom.
"Train accidents of this sort have of late become a concern in the northern districts of West Bengal, " Mr Barman said.
As universities and student numbers have multiplied, quality has become a concern.
And the problems of students leaving university laden with thousands of pounds of debt have become a concern to both young people and their parents.
"Inflation is definitely not a concern right now, and it's unlikely to become a major concern in the future, " said Rohit Savant, senior commodity analyst with CPM Group, a New York metals consultancy.
Since job creation had become a top concern for both parties, Ms. Mitchell saw a "unique time" to act.
"Hospitals have become a major concern for us since that fire, " he told BBC News Online.
It's this fear of "blowback" that has become a primary concern for security officials looking at Somalia.
The US delegation, however, forcefully argued that homegrown terror has become a growing concern among American law enforcement.
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Internet security has become a major concern for Internet users in China as the scale and nature of security threats continues to evolve.
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Under-performance among working-class boys has become a particular concern for the government, because it is associated with high rates of vagrancy and crime.
While economic growth has surged thanks to the industrial recovery, galloping prices of food items following last year's weak monsoon have become a national concern.
It is something that will have to be corrected as we return to normal in credit markets, or accelerating inflation will become a serious concern.
One of the connections that has become a major concern in many organizations is the addition of unauthorized WiFi Access Points (APs) to corporate networks by individuals and departments.
Azarenka, who has a 14-0 record this year, revealed that the physical demands of the schedule has become a growing concern since she won the Australian Open last month.
While Path and Twitter have been at the center of this particular instance, privacy has become a constant concern for some across many of the Web's most popular sites.
Competition is also likely to increase over the next 12-18 months and become a growing concern amongst investors, however, we believe VMware is well positioned to maintain its leadership role through innovation solutions and continue to deliver strong long-term growth.
"When you consider the huge exposure of British pension funds to BP it starts to become a matter of national concern if a great British company is being continually beaten up on the airwaves, " Boris Johnson said.
Mr. Hong: Because we expect a slowdown in the global economy, our expectation is that inflation in Asia is likely to recede and become less of a concern over the course of the year.
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But the spontaneous outbreak of public support has become a matter of deep concern for Mr Singh's administration.
The use of force at a Cheshire prison has become a cause for "particular concern", the chief inspector of prisons has said.
But if occupancy in Southern Cross's homes falls significantly in the coming weeks, the losses generated by the business may increase to an extent that any pretence that it is a going concern will become impossible.
Whenever an organization grows this quickly, there is a constant concern that we will become too disparate or too far removed from the actual mission at hand.
The committee also expresses concern that the scheme could become a "permanent feature" of the housing market and insists any decision about its future should be taken by politicians rather than the Bank of England.
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Most people view the Occupy Wall Street movement as the ideological opposite of the Tea Party, yet they share a remarkably similar motivating principle: a concern that our economic system has become fundamentally unfair.
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McCall said that privacy, once a major concern in targeting mobile users, has become less of an issue.
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In his conversation with Blair, Khatami said his concern was that the Afghan people must not become a target or be made to suffer.
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