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Jon: scott. violence exploding from khartoum, lebanon, tunisia what is fueling this rage and what is the u.s. doing to protect our interests. expert analysis ahead including ambassador john bolton. new polling today from several battleground states. where their voters stand in the presidential race. jenna lee and i join you in just a few minutes. bill: thank you. federal reserve now taking a strong step to help the economy. the fed chair ben bernanke insisting this decision has nothing to do with an election in 50-some-odd days. >> i think we've tried very, very hard and successful to be nonpa...

but they conceal some very real dangerous designer drugs blamed for horrifying acts of violence. i'm wolf blitzer. you're in "the situation room." it may be the most crucial of the battleground states, and today barack obama and mitt romney are turning ohio into their personal battleground. the slug-fest takes the form of rival speeches. but one candidate started swinging before the bell. let's go to jim acosta. he's watching it all unfold. what's the latest, jim? >> wolf, they were almost duelling speeches, campaign events in the same state on the same day at almost the same tim...

Anybody that thinks sanctions is going to be effective is not seeing the same reality that the regime in tehran is seeing. >> greta: do you believe they are going to get nuclear weapons or is there going to be an action that prevents them? >> the israelis are the only power that is prepared to do anything. the united states under obama certainly not. israelis are under enormous pressure from the administration not to strike. if i were betting, iran gets nuclear weapons but i wouldn't count israelis out at this point. >> greta: you think a republican president would take a different -- >> i wou...

Anybody that thinks sanctions is going to be effective is not seeing the same reality that the regime in tehran is seeing. >> greta: do you believe they are going to get nuclear weapons or is there going to be an action that prevents them? >> the israelis are the only power that is prepared to do anything. the united states under obama certainly not. israelis are under enormous pressure from the administration not to strike. if i were betting, iran gets nuclear weapons but i wouldn't count israelis out at this point. >> greta: you think a republican president would take a different -- >> i wou...

we will listen to some of those recordings. and you'd better check your fridge. a massive hard boiled egg recall is under way in 34 states. >> today the nevada caucuses, the first contest in the west began about an hour ago. voters are concerned about widespread foreclosures as you can imagine in nevada, high unemployment rates. mitt romney is expected to sweep the mormon vote. political editor paul steinhauser is at a caucus site in las vegas. paul, wa kind of activity are you seeing out there? >> reporter: good morning again, susan. we're at becker middle school in the northwest ...