Christie made a political move rather than a science-based decision.
I get that the general public doesn't understand virology, particles per mL, mode of transmission, etc. etc. but it's the job of effective leaders to surround themselves with others who do, then make the right decision for their jurisdiction and (in this case) humanity.
The reality of Ebola is that if the Western World doesn't send health care providers to West Africa, the epidemic will continue to spiral out of control, affecting everyone