So why is someone plugging a USB drive with FIREFOX into an "air gapped" computer?
Looks like they've re-invented "sneakernet".
Seriously. If security is that important that you air-gap a system, why aren't you locking down the USB ports?
Developing a, super secure, file based Intranet?
There is no reason to use Apple Pay until it can have the same reach as cash or plastic.
Except if the retailer accepts it, it's safer than swiping your card.
Your good nature will bring you unbounded happiness.