Originally Posted by
sobore
This is not the first time this issue has come up. I would imagine these would have been banned by now if a real issue exists.

The loss of a B747-400 isn't enough of a "real issue"?
The loss of a UPS DC8-71 in Philadelphia in 2006 was likely caused by batteries in cargo as well though there wasn't enough evidence left after the fire to conclusively establish the source.
http://travel.webshots.com/album/547532134IXldbN