This is so much more effective than a “do not trespass” sign. Kaziranga national park in India’s northern state of Assam really wants to protect its rhinos from poachers armed with AK-47s. The state government is beefing up armed guards to protect the animals and soon will deploy drones. State laws even shield guards from prosecution if they kill a poacher while protecting a rhino. Will this create an all-out war between poachers and guards? It’s possible. Will it save rhinos from extinction? Well, it can’t hurt.