India, March 15 -- Imagine your body could be taught to fight cancer the way sniffer dogs are trained to detect explosives. Normally, the immune system does this job. But when it fails, is when cancer happens. This is a clever enemy. It disguises itself as part of the body, slipping past the immune defences and goes unnoticed. Now, CAR T-cell therapy is like fitting the immune system with high-tech goggles so it can spot the enemy. Doctors take a few of your immune cells, reprogram them in a lab to recognize cancer, and send them back into your bloodstream....