I watched or maybe read an article about the military's effort to have a way to locate their troops anywhere in the world at anytime. I'm talking individual soldiers here.

One of the things they were looking at is inserting a removable chip like they use on pets that they could track and with a way for the soldier to activate ( crush the chip) which would mean it's life or death, send Seal Team 6 pronto.

I'm guessing that in the next 10 yrs or so they'll have something like that for the civilian market.

You pay a fee, get it inserted/removed and tell them where your going. They follow your every movement and you have a way IF your conscious/able to get help. Your contacts could log in an follow you like they do now.

That would take the human error out of it and maybe the electronic because the military will demand that from the supplier.

Still might not not be able to send daily OK messages, but I think most worried users/families would be comforted to know that in a life threatening situation their loved one has a option that will be as close to 100% reliable as we can make it.