Army of tiny injectable marching robots set to wage war on disease

An army of microscopic robots thinner than a human hair have been created that can be injected into the body to wage war on disease, researchers claim. It resembles the plot of sixties film Fantastic Voyage in which a vehicle was injected into a patient. Scientists inside destroyed his blood clot - with a laser gun. The new real-world micro-bots could monitor nerve impulses in the heart or brain, according to scientists from Cornell University who created the machines. The minute four-legged machines will also be able to move through tissue and blood after entering the body via a hypodermic needle.