It is concern that is broad and stretches across the globe as well as, specifically, to the region.
However, it is clearly of concern that it is being used as bomb detection equipment.
The BBC's Imogen Foulkes in Geneva says it is a concern that the UN hopes participants at an international conference on Afghanistan, due to take place in The Hague next week, will address.
Rather, he says that as long as a Lincoln is made to be as functional as it is beautiful his only concern is that everyone knows what a Lincoln is when they see it.
"It is also a concern that secondary schools are squeezing history out of the curriculum or into general humanities courses, " he said.
"It is a great concern that children are not only dying due to injuries, but they are also being disabled, creating burdens that our society must face, " he said.
Although that does not sound like a lot, it was enough to concern environmental groups because it is thought that there are just 500 of these animals left in the wild and mothers with calves get hit more frequently.
Bremer said it is critical that he discuss the ideas first with the Governing Council, and the White House concern is that it not be seen as imposing a plan -- and a new government structure -- on Iraq.
And is there concern that it's -- America is recovering slower than other places?
It is set against a background of concern that Wales is running out of landfill space, with the National Audit Office (NAO) Wales last year recommending that 500 new waste management facilities were needed by 2010.
But if health coverage is the huge concern that some say it is, and Healthy Howard has such a low price tag, why have so few people enrolled?
It is becoming such a concern that MPs are now calling for an investigation into land speculation.
It appears the concern is that players might be tempted to throw games in order to play more games and earn additional money.
It adds that it is "clear that from the widespread concern" that the Department of Health will have "a major task in explaining these provisions to health staff and persuading them to accept the department's interpretation of them".
But it is the cost question that is causing the most concern among MPs at Westminster.
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Experts say that the concern with profiling is that it can include a high percentage of students that have similar characteristics.
However, it added that it was "aware that visual impact is a concern of the public".
Even though America has seats on its board, there is concern that it will be under-represented.
But it is at home that Mr Erdogan is causing the most concern.
John Conyers, a black congressman from Michigan, has written to the federal attorney-general asking for a review of PA4, expressing concern that it is being applied in a discriminatory fashion.
"It is an issue of grave concern that the explosive device was not detected by airport security in either Lagos (Nigeria) or Amsterdam (Netherlands), " which AbdulMutallab passed through en route to Detroit, Johnson said.
But others believe that the media is voicing a real concern and that it has a duty to warn consumers and investors.
But in this latest stage of the conflict, it is the response of the police that is causing the greatest concern.
Recognizing that it is a draft and not complete, the Republican concern is that federal contracts could be awarded on the basis of political donations -- or not awarded because of political donations.
And they're looking at--their concern is that it could break off during re-entry and maybe damage the shuttle further back.
Sure, the Devil is in the details, but as I see it, the key concern is how to ensure and insure that there are sufficient funds to back up a guarantee.
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Homeopathy is not proven and it's not evidence-based, and that is a concern.
If this is a cause for concern, maybe there is solace in knowing that it has happened before.
Is that resilience a positive sign, or dies it perhaps create a concern that the U.S. market would have further to fall from here than markets in Asia and Europe if it should decide it also needs to factor a recession in Europe into its prices?
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