Miniature robot can swim through blood vessels

A couple of scientists from Israel have achieved what until now has only been possible in the movies -- a miniature robot capable of traveling through human blood vessels. Measuring only 1 millimeter, it's a small hub with legs designed to grip and crawl through blood vessels without getting swept away. Doctors can control the little robot indefinitely from the outside for different medical procedures, although they have yet to figure out what exactly they'll use them for. As of now, they're thinking small armies of bots sent in to battle internal cancers.

Would you be up for it? What if one of the little buggers gets stuck?