Debates are unique, unlike the highly choreographed campaign event

Incumbents usually are at a disadvantage, defending a record against a challenger critiquing four years of work. Obama will be trying to avoid the fate of Presidents Ronald Reagan and George W. Bush, who turned in flat debate performances in their first encounters with rivals. In the end, though, it didn't hurt either one as they both won re-election.

"Debating is a muscle that doesn't get used very often," said Alan Schroeder, a journalism professor at Northeastern University and the author of "Presidential Debates: Forty Yearsof High-Risk TV." ''Mitt Romney is better toned because he came off 20-plus primary debates. President Obama has not been on a debate stage in four years."

Debates are unique, unlike the highly choreographed campaign event or stump speech marked by over-the-top rhetoric. Schroeder said debates require a different dynamic — candidates need to be respectful, differing in opinion but avoiding any impression that it's personal.

The announcement comes just over six months after a heated battle

But the two men expressed caution and urged Google to carry out the change with the vigorit adopted in combating pirated videos on YouTube, which Google owns.

"The devil is always in the details," Mr. O'Leary said. While Mr. Sherman added, similarly, that changing the search algorithm "is not the only approach and of course, the details of implementation will matter."

The announcement comes just over six months after a heated battle between big media companies and technology companies, who were sparring over proposed legislation intended to crack down on pirated online content, particularly by rogue foreign Web sites.

Boyle, one of Britain's most successful filmmakers

The evening started with fighter jets streaming red, white and blue smoke and roaring over the stadium, packed with a buzzing crowd of 60,000 people, at 8:12 p.m. — or 20:12 in the 24-hour time observed by Britons.

Boyle, one of Britain's most successful filmmakers, who directed "Slumdog Millionaire" and "Trainspotting," had a ball with his favored medium, mixing filmed passages with live action in the stadium to hypnotic effect, with 15,000 volunteers taking part in the show.

Actor Rowan Atkinson as "Mr. Bean" provided laughs, shown dreaming that he was appearing in "Chariots of Fire," the inspiring story of a Scotsman and an Englishman at the 1924 Paris Games. 

The tour uses a very narrow

The tour uses a very narrow, if not convenient, definition of "appearance fee." If a player has deeper business dealings with a corporate entity beyond taking cash to play, then he's generally free to ink a personal-services deal for whatever dollar figure he can command. If this sounds mostly like semantics, well, the line forms here.

As one very high-profile international player put it on Tuesday, "This week marks a change. Appearance money [is being paid in the] U.S. but not in Europe."

After arriving Tuesday, Woods was not specifically asked if he was being compensated by Justice this week, though a local reporter did ask if Justice resorted to "pulling his arm" to get him there. 

The former Soviet Union star had been prickly

Blokhin's observations were overshadowed by an extraordinary argument with a local journalist over his side's performance.

The former Soviet Union star had been prickly before the game. However, that was nothing compared to what happened after his side had crashed out of the competition.

First Blokhin suggested the journalist should "come outside and have a man talk".

Then, when the conference had finished, Blokhin pointed to the journalist, and then to the door from which he made his exit.

The journalist declined the offer.

"Respect my job," he said. "Let's go this one on one. You want to go with me? Let's have a 'man conversation'. 

The teams met four straight years from 1997-00

It starts Saturday with the Chicago Bulls, the overall No. 1 seed, hosting the Philadelphia 76ers. Then it's Miami against New York, with James and Anthony just a couple of the big names in a series loaded with star power.

And with history.

The teams met four straight years from 1997-00, the Knicks winning three of the series and earning a draw in the fights. The animosity doesn't exist between these players — James and Anthony have known each other since high school before entering the league together in 2003 — but you bet it's still around for the organizations and fans.

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Lin was scratched from the Pawtucket lineup Friday night

Lin was scratched from the Pawtucket lineup Friday night for its game at Rochester, N.Y. Lin is an excellent center fielder with an above-average arm. It appears Valentine will pare down to 12 pitchers and designate someone for assignment (possibly Justin Thomas).

A long-term injury to Ellsbury would be devastating, as it was two years ago when he broke his ribs and played only 18 games.

The Sox' offense had been struggling until Friday's 12-2 victory, but it always works best when Ellsbury is getting on base. Ellsbury was 2 for 3 before his injury. When Ellsbury gets on base, it makes life easier for Gonzalez, David Ortiz, and Youkilis to drive in runs.