Here's what I don't get: why were you using an airplane instead of the transporter?

You can disconnect it from http://kindle.amazon.com, click your name in the top right, click Manage your Kindle, then in the column on the left, select Manage your Devices, pick the thing, & deregister. Just keep track of the serial number, because you won't be able to see what they do with it any more. Then contact Amazon & let 'em know it's been stolen. They should be able to track if someone tries to re-register it. With any luck, Bezos built in a way to remotely detonate the battery. Shame you can't remotely update the screen saver to loop grotesque obscenities.