[lantern]

It doesn't look like anyone has explained the real danger of plugging into one of these.

Any malware, skeezy content, etc. can be avoided by simply not opening files and having your computer not autorun usb drives. But the real issue (at least the one that always comes to my mind) is if, say, the "USB device" was just a male connector connected directly to wall power. This would at least fry your computer's USB, possibly more.

It would also be trivial to set up a simple circuit inside a USB drive casing to step up voltage and potentially fry your computer's ports.