Equally important, journalists must be credible in these representations---their sources must be persuaded that the journalists not only intend to keep their promise of confidentiality, but that they are able to keep it.
As long as Romney didn't seem like a credible alternative, Obama kept it at bay, even though the economy has stagnated.
"SNL" producer Lorne Michaels is the executive producer of "30 Rock"; costar Alec Baldwin has been a frequent guest host of that show -- indeed, his appearances there have helped keep him credible through the years.
In Britain, the chancellor of the Exchequer, George Osborne, said Thursday that unlike some other European countries in financial straits, Britain had a credible plan to help keep its borrowing costs down.
The Kim regime in North Korea has been almost entirely consistent in its policy: It vows to keep building a credible nuclear arsenal, complete with ICBMs, until it has the capacity to deter a U.S. attack.
How to keep a credible U.S. presence in Asia under a significantly reduced military budget is the new challenge for Mr. Panetta.
None of this would be happening if Netanyahu and Barak would not keep a credible threat for Israel's attacking Iran alive.
If n equals 0 or 1, then the opportunity in this interval is 0. The sliding window width was chosen to optimize temporal resolution while leaving enough data in each window to keep the credible interval sufficiently narrow.
Small, incremental changes -- like the addition this year of the OnStar emergency notification system on Century Limiteds -- keep the car credible in the lower part of the midsize market, a notch below its slightly flashier sibling, the Regal.
The GOP operative said that Graham's political operation has managed to keep the most credible threats to Graham on the sidelines through bare-knuckle tactics.
