Let the hive mind of Engadget get that for you.
"We need a digital camera that can be switched on and fire off that first shot fast. It's not a commonly tracked statistic on any review site, and nobody seems to have this information for every camera. We were hoping other readers could inform us as to what small digital cameras can fire off their first pics in under a second (ideally under half a second). It needs to be small, but mostly, just really quick in operation. Thanks!"
I am more than a little skeptical as they "can't provide more information" since the case is pending. This was announced by a company with a vested interest in making people paranoid about this. That is not to say there isn't a threat, but I would suspend judgment until we know more about the case...particularly from a more neutral party. There are a whole lot of this tools on various websites such as hak5.org and usbhacks.com