US Peace delegation protests outside Guantanamo

Why is this not news? OK, so I'll stop being disingenuous. Why is this news being censored? OK, you're right, even that is a naive question. Why are none of the leftist blogs in the US or the UK covering this? Are they not aware? Is there some pernicious angle to the story not apparent to me that makes it OK that there's a virtual news blackout on it in the US and only low-key coverage in the UK? I heard a brief discussion on the BBC (Radio 4) but it was at just past 6 in the morning and not repeated. It's not in the Guardian; it's in only tiny, ultra-liberal US print media. A blog search turned up nothing. A Google News search found a few stories including the one above, but the only "major" papers carrying it were Canadian or Caribbean. What's the deal?