Yet in his present role, which he has held since 2005, he has repeatedly demonstrated a concern for preserving the Supreme Court's credibility in the delicate role it plays policing the boundaries of federal and state authority.

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In recent weeks, the U.S. has demonstrated its increasing concern about the threat from North Korea by bolstering its missile defenses in the region.

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Its powerful chairman, Alan Greenspan, first demonstrated the extent of his concern by persuading his colleagues to cut interest rates on January 3rd, in between regular meetings of the Fed's main policymaking body, the Federal Open Market Committee.

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In his 267-page report, Louis Freeh, the former FBI director who led the review, blamed Spanier, former head coach Joe Paterno, and ex-administrators Gary Schultz and Tim Curley for having "never demonstrated ... any concern for the safety and well-being of Sandusky's victims until after Sandusky's arrest, " while the board of trustees failed to perform their oversight duties.

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