[electromagnetic]

You should watch the new episode of Mythbusters called Motorcycle Flip, as the side myth in it is testing if someone can actually escape from jail like some newspapers state the 'facts' like using human hair, bedsheets and toilet paper. As all three get proved plausible, it shows what can be turned into a cable.

When someone can make a rope out of single ply perforated (the easy-rip kind) of toilet paper, I think someone will find a way to make a cable out of nanotubes.

From what I've read of nanotubes, you might not even need an adhesive to hold the cable together as they have high levels of van der Waals force. If you simply splice all the ends together it's possible you'd have the worlds strongest material held together by the universes everlasting and powerful adhesive.