-It could be either removable media again, or
-@url{https://en.wikipedia.org/wiki/USB_dead_drop, USB dead drops}, or
-@url{https://en.wikipedia.org/wiki/PirateBox, PirateBox}es, or
+It could be either removable media again and/or
+@url{https://en.wikipedia.org/wiki/USB_dead_drop, USB dead drops},
+@url{https://en.wikipedia.org/wiki/PirateBox, PirateBox}es,