Ebola is not an airborne disease. It is spread only through body fluids. So that makes Ebola less contagious than the other airborne diseases such as Tuberculosis and Influenza. Therefore, I don't think sufficient justification exists for declaring the martial law.
This bodily fluids stuff is an interesting one. I think if on the tube someone sneezing at me I can get some bodily fluids... Or saliva doesn't count ?
Unfortunately, that is the case. If an infected person sneezes close to you, then there is a good chance that you will get infected. That is because as the disease progresses to the advanced stages, blood gets mixed with mucus, which makes even sneezing highly contagious.
During the Ebola outbreak of 2001 in Uganda, the most senior doctor there, Dr. Matthew Lukwiya got infected an later died of the disease after a patient named Simon Ajok sneezed close to him.
That's the reason why asymptomatic carriers and other infected people without symptoms are relatively safe. 
