Well, as you pointed out, Israel, for whatever reasons, has decided not to shut down the Palestinian radio stations spewing out calls to violence.
One of the things that set off the al Sadr uprising was that his radio station was shut down by the U.S.
Now, his faction has no radio station, his militia has been politically isolated from other Shiites, U.S. snipers are picking off his militia and al Sadr is a dead man walking.
All in all, the idoelogy is being targeted and killed.