Officials with Russia's domestic intelligence service, the FSB,have yet to comment on whether the derailment was caused by terrorism.

VOA: standard.2009.11.27

But Mr.Obama used the opportunity to comment on the tone of the national debate.

VOA: standard.2009.08.11

On Thursday, Somalia's Prime Minister Omar Abdirashid Sharmarke refused to comment on reports that a ransom of as much as $700,000 was eventually paid to the kidnappers.

VOA: standard.2009.11.26

He expressed reluctance to comment on American domestic affairs, but suggested that a renewal of the now-expired U.S.ban on assault weapons would be helpful in curbing the flow of high-powered armaments to Mexican drug cartels.

VOA: standard.2009.04.12

Fifth Fleet would not comment on what additional security measures are being taken to protect its ships and personnel.

VOA: standard.2010.01.07