Some reports stating that Muammar Ghaddafi was using missiles made in Israel against his people turned out to be very wrong, thanks to some crowdsourcing done by NPR reporter Andy Carvin.
Carvin saw an image via Libyan news service Al Manara's Facebook showing a shell with what looked like a Star of David on it, and had his Twitter followers piece the story of its manufacture together. It turns out the missile is of British origin, showing no link between Israel and Ghaddafi's supporters. Nice work. [Storify via BoingBoing]