Hutch:
I strongly doubt it. Way too much risk for no real reward. Abu Nidal apparently had been inactive for about 8 years and was rumored to be very ill (cancer, etc.). No real reward for killing him. Major risk if the operation went bad and US operators were killed and/or captured.
Abu Nidal made enemies throughout the Arab world. Lots of people wanted his head, not just us, not just the Israelies, and many of those folks would be have a much easier time slipping operatives into and out of Iraq.
M1911