They had 2 in reserve, so it would seem that they had planned for the potential of neither helicopter returning
But as I've said, we've come full circle. At this point your arguing with me just to argue, since I haven't yet disagreed with the issue of other components, such as budgets, going into analysis and planning
If the goal was to take out bin Laden, and not lose any American troops in the process, it was indeed a flawless mission