So North Korea’s satellite launch attempt failed

North Korea failed in its highly vaunted effort to fire a satellite into orbit, military and private experts said Sunday after reviewing detailed tracking data that showed the missile and payload fell into the sea. Some said the failure undercut the North Korean campaign to come across as a fearsome adversary able to hurl deadly warheads halfway around the globe.

As I understand it, the failure was caused by a tangle in the string between the tin can on the satellite and the one on the ground.