Yale Law professor Eugene R. Fidell, on a recently released Justice Department memo from 2003 that sought to establish legal justification for the use of harsh interrogation techniques against terror suspects

Former president Jimmy Carter, one of a handful of high-profile Democrats who have remained publicly neutral during the primary season thus far

Presidential hopeful Hillary Clinton, when asked whether she had ever told New Mexico Gov. Bill Richardson that Barack Obama "cannot win" the general election in November. Her campaign later backed away from her response, saying that she had misheard the question.

Tendai Biti, a senior official in Zimbabwe's opposition party, vowing to topple the country's longtime leader Robert Mugabe, who is resisting calls to abandon a revote effort and step down after apparently losing last month's election

Federal Reserve chief Ben Bernanke, using the R word in public for the first time, during an appearance before Congress's Joint Economic Committee

Gen. Richard A. Cody, the Army's vice chief of staff, in an appearance before the Senate Armed Services Committee, warning that the troop surge in Iraq and Afghanistan has compromised the military's ability to fight other conflicts

Presumptive Republican nominee John McCain, announcing that he hopes to winnow down a list of about 20 potential running mates before the party convention in early September