The more confrontational tone from Washington underscored concerns within the administration about the long-term effect of the oil spill, not only environmentally, economically and politically, but on the national psyche as well.
The appearance of a relatively large quantity of uranium, nearly four pounds, on the black market in Georgia, a former Soviet republic, has underscored concerns within the American government that trafficking in nuclear material has shifted from Europe to the Caucasus, Central Asia and Turkey.
And they say that the striking scenes of the Korean leaders warmly embracing, holding hands and clinking Champagne glasses have underscored divisions within the administration over how -- and how quickly -- to proceed with a defensive shield and what the North's true intentions might be.
The comments underscored divisions within the insurgent organization that raise questions about whether a truce, if reached, will end the violence that killed or injured more than 10,000 Afghan civilians in 2014, according to United Nations figures.
That creeping radicalization has underscored the rift within Iran's opposition movement, analysts say, and poses a problem for its leaders, including Mr. Moussavi and the reformist cleric Mehdi Karroubi.
A flurry of high-level meetings in Washington this week underscored the divisions within the Obama administration about what actions to take in Syria to stop the fighting.
Mr. Jackson's remarks, and Mr. Lieberman's efforts to reach out to members of minority groups, underscored complicated dynamics within the Democratic Party that have slowly surfaced in the weeks since Mr. Lieberman's selection.
Mr. Gottlieb's diatribe only underscored the tensions within the firm: Don DeMesquita, an agency spokesman, took the extraordinary step of disavowing Mr. Gottlieb's comments, explaining that Mr. Gottlieb spoke only for himself and not for William Morris.
Mr. Korn's attendance at the event underscored the concern within Thailand's business community and around the world about the effects of the demonstrations on the country's economy.
Some analysts suggested that Ms. Ashtiani's videotape underscored the tensions within Iran's government between the president, Mahmoud Ahmadinejad, and his rival, Sadeq Larijani, the judiciary chief who ultimately controls Ms. Ashtiani's case.
