Posted a version of this story yesterday. In case anyone wants to see, it's at:
http://www.freerepublic.com/focus/f-news/1653966/posts
If you ask me, it's going to cause trouble for fire managers.
It's okay to only speak Spanish and not English, even while working in an English-speaking country.
It is not okay for the English-speaking person living in the English-speaking country to speak only English. In order to keep a job, he or she must speak Spanish also.
Sounds ripe for a legal challenge.
I have encountered this in countless job advertisements and job interviews as well.