"Advanced imaging technology enhances security by safely screening passengers for metallic and non-metallic threats including weapons, explosives and other objects concealed under layers of clothing without physical contact, " Soule said.

CNN: Body scanners not 'magic technology' against terror

The harpoon is clearly aimed at capturing the larger objects but many other solutions have been proposed, including the use of lasers to nudge space junk out of the way, or using giant nets and space tugs.

CNN: Space harpoon plan to nail orbital garbage

Other well preserved objects were also found in the cave, including large containers, many of which held wheat and barley, apricots and other edible plants.

BBC: 'Oldest leather shoe' discovered

We know this is not ideal for user, but it means there are 'shared objects' between the two codebases which require users allow third party sites (any other domain including subdomains) access to local storage.

BBC: Your guide to the BBC Embedded Media Player