It hasn't gotten much play in the mainstream media that I've seen, but the following report of interest surfaced on Friday:
"Pirates recently gained control over a Russian ship off the shores of Sweden in order to prevent weapons smuggling to Iran on Israel's behalf, according to a report by Russian newspaper Nuvia Gueta." (source)
And, later, from a different source in Russia...
"A Russian newspaper claimed Friday that suspected pirates who boarded the freighter Arctic Sea were actually agents of the Israeli secret service trying to stop it smuggling arms to Iran. According to Russian media, the Arctic Sea may have been carrying illegal X-55 cruise missiles destined for Iran hidden among its cargo of lumber." (source)