The Sudan is South of Egypt. To hit anywhere in Iran Israel must fly over Saudi Arabia or Iraq or Syria. Their air refueling would be vulnerable at no cost should Saudis or Turks shoot it down. Lose one tanker and they could potentially lose all of the bombers. The most likely strike would be by submarines in the Persian Gulf against oil targets; which can be destroyed by cruise missiles. The resulting economic collapse would take out the bomb making capability and have the bonus of removing Iran as a state sponsor of terrorism for decades. BTW, it would also lead to a world-wide collapse as the Iranians would put thousands of mines in the Striates of Hormuz. Nothing will actually happen before January 21st.