Iran deploys missiles in Persian Gulf

The anti-aircraft missiles Iran has apparently deployed are not the advanced S-300. Jerusalem Post

Iran's Revolutionary Guard Corps has deployed mobile ground-to-air and ground-to-sea missile batteries in the Strait of Hormuz and other areas in the Persian Gulf, a senior Iranian official was quoted by Al Watan as saying on Tuesday.

The source told the Saudi-based newspaper that the move was made after Iran received reports that the US and Israel were preparing to attack the Islamic republic's nuclear facilities.

Who would have warned Iran? Most likely the Russians. But I find it hard to believe that the US is gearing for an attack on Iran right now.