| Here's the options: - You have an actual bomb that's been slipped onto someone else's stuff that is cellphone triggered; perhaps when you get to UK cellular service, perhaps after cabin altitude + time, or whatever. Making the announcement doesn't hurt at all. You want to turn back in this case. - You have a person who has a device with a name in bad taste, either because of humor or malice. Making the announcement doesn't hurt at all. You would rather not turn back in this case. They might turn it off. - You have a person who is controlling the actual bomb on the plane. Making the announcement or turning back or even continuing -- it doesn't matter. Your moves are visible to them. |