As the cartoon suggests, the Iranians unquestionably believe that they are on a roll.
Yesterday, Iran officially replied to US/European/UN warnings to discontinue its nuclear enrichment program by stating that Iran was interested in talking, but that they intended to keep their nuclear program, thank you very much.
Also yesterday, as if to make sure the West, in particular the lily-livered Europeans -- got the message -- an Iranian warship seized a Romanian oil platform in the Persian Gulf. The oil platform in question, along with another rig, had apparently been drilling in Iranian waters; but the contract expired, and the Romanians (after getting a favorable court decision allowing them to do so), removed one platform. When they tried to move the other Tuesday, two Iranian Navy oil supply vessels demanded to be allowed to send boarders on to the platform; and when the Romanians refused, the supply ships whistled-up a warship which fired on the platform, and then disgorged commandos, which took control. Eagle Speak, (the Source on matters nautical), has a complete discussion, here.
The Iranian reaction seems extreme for what amounts to a commerical dispute. . .but Romania is very friendly with the United States, and is thus a convenient target for picking-on when looking to remind the Europeans to play nice and ignore the Big Bad Wolf's fangs and nukes if they know what's good for them.
The Iranians have thrown down their gauntlet. Anybody gonna pick it up ?