Wow. Couldn't he just ban it without resorting to Chicken Little language?
Nothing like frightening the public in order to justify your job. Not to mention adding to the ignorance of the public about flight dangers in general. Sigh.
So if "even one" incident is a high risk, then why haven't they heeded previous calls to ban electronics, calls that arose after iPhones and other devices have caught fire on airplanes?
(Answer: because they know that cabin smartphone fires are -- and have been each time so far -- easily handled by crews trained for it because of their own airline-provided devices, and because the mass public would have a hissy fit if the majority couldn't use their smartphones and tablets onboard.)
Just a few days ago you were lamenting the FAA/airlines' inaction on cargo bay fire suppression systems.