Hmmm. This is a step beyond Independence Day's virus delivery to the mother ship. Yes, ahead there surely will be implanted terrorists (or patriots) who will look to deliver digital-biological viruses one-on-one surreptitiously to the computers of specific vehicles or whole transportation systems. To hack medical devices. To attack quality control systems in such as water treatment plants, pharmaceuticals production, and various manufacturing industries. And to corrupt critical "failsafe" systems at places like nuclear plants and defense bases. I laughed too soon when I read the suggestion of a virus under a microscope saying Hello. God help us!