Recently, Chinese commentators have provocatively referred to the inevitability of a de Americanized world.

And other commentators view the talks as another forum for cooperation, hoping that trade negotiations will improve coordination among financial regulators.

News of Morsi's sentence drew a storm of reactions online, with commentators across the religious and political spectrum denouncing the trial as politically motivated.

In the meantime, both party establishments have reason to be nervous. With Sanders now polling well ahead of Clinton in New Hampshire, serious commentators have begun speculating that Americans will ultimately be asked to choose between Sanders and Trump.

Some commentators draw an incongruous parallel between rocket and mortar attacks by Palestinian militants in Gaza against Israelis and the less lethal but very strident physical efforts of Israeli disengagement opponents to impede the implementation of that decision.