The US reportedly used a secret channel to convey to Iran more forcefully that closing the Strait of Hormuz would provoke a military response.
The good news is that many Americans accused of spying in Iran are eventually released. The bad news for Amir Mirzaei Hekmati is that Iranian-Americans have it rougher.
The two strongest Republican candidates to emerge from the Iowa caucuses, Mitt Romney and Rick Santorum, both are open to bombing Iran's nuclear weapons program.
The Iranian currency – the rial – has been essential in shoring up a view of Iran as strong and independent in recent years. Now it's collapsing on President Ahmadinejad's watch.
Iran has issued two threats that it could close the Strait of Hormuz, reminding the world how it could spike oil prices if the US or Israel attacks. But it wouldn't be easy.
The family of former FBI agent Robert Levinson, missing in Iran since 2007, confirmed today he's being held hostage and released a video provided by his captors.
Iran called the Nov. 12 explosion at a key missile development center an accident. But there is increasing speculation that it was in fact part of a covert war against Iran.
Eleven protesters in the British embassy attack were released last night. Britain is rallying Europe to clamp down hard on Iran.
Britain has withdrawn all its diplomats after yesterday's attack on its embassy, and ordered all Iranian diplomats out of Iran within 48 hours.
Western countries are on alert for any decisive moves from Tehran that hint at an 'all-out bid' for an Iranian nuclear weapon. But in the meantime they are sticking to diplomatic measures.