"But this has raised concern that O.E.C.D countries were mainly exporting their shortage problem to countries that may have an even greater need for these nurses."

VOA: special.2010.06.07

This problem is less of a concern for next generation implants, which are being designed with the hacker threat in mind.

FORBES: New Jamming Tech Could Protect Pacemakers from Hack Attacks

There is concern in the sense that this divergent economy poses a problem for the policy makers, namely the Monetary Policy Committee at the Bank of England.

BBC: Bank weighs two-speed economy

Dr. BERGGREN: There is a concern that there is a big problem with suicide in this city.

NPR: Officials: Louisiana Hospitals Face Years of Recovery