mr. ahmadinejad, it is a fairly chaotic scene was krauts pressing in on his convoy. at some stage, it seems there may have been an explosion. first reports indicated a homemade grenade or explosive device, but later, officials suggested it was just a bang, possibly some of firecracker. two days ago, ahmadinejad said that scientists had planned to try to assassinate him, but the plan is greeted with skepticism -- that zionists had planned to try to assassinate him. is that americans have been plotting to kidnap him. little evidence was produced, and there was derision in some quarters. even became an issue in the election campaign. during the campaign, joined the president on one of his rallies. it is certainly not the level of security that surrounds western leaders. a scene unthinkable around an american president, for example. the president is in there somewhere. the chaos has been like that brought the name -- throughout the afternoon. it is like this wherever he goes. mr. ahmadinejad has always been keen to approach -- to promote his image as approachable. the ou

mr. ahmadinejad went home to make his scheduled speech, and he didn't mention the incident. >> holman: widespread protests erupted in iran last year, after ahmadinejad's disputed re- election. and earlier this week, he claimed israel had hired mercenaries to try to kill him. the fires burning across russia shrouded moscow today in the heaviest smog yet and the death toll grew to 48. drivers in the capital needed headlights to see their way during daytime. the smoke and haze came from hundreds of fires burning in central and western russia aided by weeks of unseasonably hot, dry weather. in one day, firefighters put out nearly 300 fires, but 400 new ones were spotted. chipmaker intel has reached a settlement with the u.s. federal trade commission. the company was accused of intimidating computer makers not to use chips made by rivals. the f.t.c. said as a result, computer prices did not fall as fast as they might have. intel has denied the charges, but under the settlement, it agreed to change its business practices. for the record, intel is a funder of the "newshour." 40 of america's wealthiest p

mr. cameron deal with that. yes, sir. >> president ahmadinejad of iran said that he was ready for face- to-face talks with president obama. i was wondering if the white house has an initial reaction to that? >> i would say this, that obviously iran has on any number of occasions changed their position based on i think largely the pain that they're feeling on sanctions, based on the decisions that their government has made that don't jibe with where the people are. we have always said that we would be willing to sit down and discuss iran's illicit nuclear program if iran is serious about doing that. to date, that seriousness has not been there. iran has obligations that it needs to meet, and failure to meet those obligations will continue to result in unilateral sanctions by this government, u.n. sanctions that have been passed, european union sanctions that have been passed, and other countries beyond this taking unilateral action. i think those sanctions are beginning to have an impact, or else the iranian government would not be changing its position so often about discussing its program. thanks, guys. [captionin