Keeping India Safe: The Dilemma of Internal Security, by Vappala Balachandran

The hedgehog’s or the porcupine’s dilemma is a metaphor about the challenges of coexistence. It describes a situation in which a group of hedgehogs seek to move close to one another to share the heat and survive in freezing weather. However, they must remain apart because they cannot avoid hurting one another with their sharp quills. Though they all share the intention of a close reciprocal relationship, this may not occur, for reasons they cannot avoid. Eventually they settle into an ideal distance, where they can derive some benefit yet not hurt each other.