I've hit it multiple times last night and now again today, only on www.flyertalk.com (just the front page). I'm using IE9 on Win7 SP1 X64 with the Fanboy & EasyPrivacy TPL's/ad-blockers.

Microsoft Forefront Endpoint Protection 2010 is flagging something as "Trojan:JS/IframeRef". That doesn't appear to be a recent threat, and fortunately the software removes it. But you might want to have a look.