Laser used to kill cancer?

This would be a great development if it pans out. It would seem like you would need a lot of these nano-tubes to kill all of the cancer cells though. It sure sounds like a painstaking process to implant a nanotube in each on of the cancer cells. I guess they would use the laser with a wide beam to cook all the cells at once. Or maybe they would have to shoot each cancer cell one after the other. It sounds like it would take weeks and weeks to get it done. It sounds better then chemo I should think.