@Bass: A nurse with appropriate equipment and 'following guidelines' is not the same as a nurse with specialist training -- the British volunteer who contracted Ebola in Africa and was brought home to the UK was treated without infecting anyone because the hospital that took him specialised in infectious diseases and all staff were specifically trained.
The infected nurse in Madrid admitted that she touched her face after handling infected material. The Texas nurse may well have done something similar. Relative to other infections, Ebola does not spread 'easily' because it is not airborne.
So far, Ebola has affected one healthcare worker who was working closely with an infected patient -- that's not the same as a disease spreading within the public.
'Man with Ebola-like symptoms'? Could be anything and is unlikely to be Ebola. Guy in Texas? Not Ebola.
The press likes a scare-story, this is not a scare story yet; when someone gets infected who has not been in an affected part of Africa or has not worked closely with infected patients, then it's time to start to be concerned.