An Islamic group in England has also incorporated his efforts into a YouTube video that encourages Muslims to "rise up and act," widening a concern that Mr. Jones — though clearly a fringe figure with only 50 members in his church — could spark riots or terrorism.
One case that triggered alarm involved Taylor Hooton, 17, of Plano, Tex., whose 2003 suicide widened concerns about high school students' use of performance-enhancing drugs.
Mr. Zazi agreed to cooperate in part out of concern that a widening inquiry would result in more charges against his family members, including his mother, said one person involved in the case.
The Humanist concern with widening education that had become significant in the Renaissance was shared by Protestant reformers.
Ireland represents a cautionary tale: since it guaranteed the debts of its banking system, credit-default swaps have widened sharply on its sovereign debt, implying rising concern that the Irish government may one day default.
When Calgary planners announced their intention to widen Memorial Drive, where the Brownlees lived, several residents expressed concern that the plan would destroy the street's trees; they consulted Brownlee, who telephoned the mayor and saved the trees.
However, there is concern that inequalities in health outcomes and intervention coverage are widening.
Malaysian officials also expressed concern that the search area would have to be widened again if no trace of the plane was found.
There is widespread concern that the focus on quality improvement systems driven by financial incentives may lead to a widening of the existing inequity in health care.
Privately, some lawyers and accountants in the United States express concern that individuals who move to the American island for its lower taxes might appear "unpatriotic" in a widening crackdown by authorities on offshore tax dodging through Switzerland, Israel and Singapore.
