Sentence:  "We've already been at <WSD>status zero</WSD> this morning," Colbert said Wednesday. "Last year, we looked through our statistics, and we've run at 350 times, we could count, that we were without an ambulance within our 460 square mile district." 
Meaning of the word marked with <WSD> tags:  A status of having no available emergency vehicles or personnel to handle incoming calls.