Is it true that the gubmint can track the location of my cellie even when it's off? Or do I really need to disconnect the battery?
It's theoretically possible since it's a soft power-off. Hypothetically, the phone could still be operating while giving the appearance of being turned off. By the same token, it could be taking pictures and transmitting audio even when you're not on a call and not using the camera, or even when "off". Whether this is ever actually done, I don't know.