Even now. the margin for success is dangerously narrow. and that success. if it comes. will apply only to West Beirut. It will not apply to the 7.000 Palestinians imprisoned by the Israelis since June 6. It will not apply to the 14.000 PLO fighters thought to be in the Bekaa Valley. It will not apply to the approximately 2.000 PLO members guarding a Palestinian refugee camp near Tripoli. Lebanon. It will not apply to the armies of Syria and Israel or to Lebanons own free lance militias should their leaders perceived interests dictate that the Bekaa or Tripoli become the next Beirut.