Beware, Jack Shafer (“Doubting Twitter. Let’s not get carried away about its role in Iran’s demonstrations”). When you speak ill of Twitter, Twitter hears you.

So suggests CBS News’s Mark Knoller with this tweet just now:

Perhaps the Twitter gods were not amused by Hillary Clinton’s Twitter crack yesterday. She fell & broke her elbow on the way to the WH.

Clinton’s “Twitter crack?” Apparently, in reference to tweets from Iran:

I wouldn’t know a Twitter from a tweeter, but apparently it’s very important.

(But, as Megan warned — wasn’t me! it was Megan! — let’s hold off, for now, on pronouncing Twitter’s role in a still-unfolding situation).