  We discuss the possible role of reconnection in electro-magnetically
dominated cores of relativistic AGN jets. We suggest that reconnection may
proceed in a two-fold fashion: initial explosive collapse on the Alfven
time-scale of a current-carrying jet (which is of the order of the light
crossing time) and subsequent slow quasi-steady reconnection. Sites of
explosive collapse are associated with bright knots, while steady-state
reconnection re-energizes particles in the ``bridges'' between the knots.
  Ohmic dissipation in reconnection layers leads to particle acceleration
either by inductive electric fields or by stochastic particle acceleration in
the ensuing electro-magnetic turbulence.
