WhatsApp introduces encryption - What's your view on it?

WhatsApp has recently introduced encryption on its servers. This may make the service illegal in India. The end to end encryption can be misused by anti nationals for their nefarious intentions.
Coming soon after the ongoing legal battle between Apple and FBI, the move by WhatsApp has been quite worrying according to the security experts.

What do our Techians feel about this move? What will be the effects of this move?
Come on, share your views here.