  Pulsar emission should primarily come from the magnetic separatrix...
Combining theory and observations, we show that force-free electrodynamics
(FFE) gives an accurate description of the large-scale electromagnetic field in
the magnetospheres of Crab-like pulsars. A robust prediction of FFE is the
existence and stability of a singular current layer on the magnetic separatrix.
We argue that most of the observed pulsar emission comes from this singular
current layer.
