An online battle is raging between Israelis and Arabs, with each side unveiling credit card and other personal information of thousands of private citizens, as well as temporarily disabling high-profile websites, like the Tel Aviv and Saudi Arabian stock exchanges.
So far, the recent Web assaults seem to be the work of bored young people venting frustration. But others worry that these actions could easily escalate into a much larger online fight.
The nation's top military officer, Gen. Martin Dempsey, is in Israel where he's expected to send a clear message: Don't attack Iran, and let the tougher sanctions take hold.
Dempsey's trip to Israel was scheduled weeks ago, but it comes at a particularly sensitive time. Iran has threatened to close the Strait of Hormuz, the key route for oil shipments, and has stepped up its naval activities.
An Iranian nuclear scientist was recently killed by a drive-by assassin, and Iran is blaming Israel.
An Iranian nuclear scientists was killed by a car bomb in Tehran this morning, Iran's official news agency said. According to Press TV, Iran's English-language outlet, a magnetic bomb was placed beneath Mostafa Ahmadi Roshan's car by a man in a motorcycle.
Press TV says Roshan and his driver were killed and a bystander was injured. Roshan was a "chemical engineering graduate and served as marketing deputy of Iran's Natanz nuclear facility."
Isolated by the West because of Iran's nuclear program, Iranian President Mahmoud Ahmadinejad is turning to close allies in the Americas for diplomatic support.
He kicked off his four-nation tour of Latin America on Monday in Venezuela, whose president, Hugo Chavez, accuses the U.S. of trying to dominate the world. Ahmadinejad's next stops are Nicaragua, Cuba and Ecuador — all sharply critical of Washington's foreign policy.