i wanted nycha to help me when i needed it. >> you had to make a lot of noise?lic. >> so she went public and "dateline" went undercover to see if anyone would be listening. >> oh lord, you know what? you need to say to somebody. >> coming up, somebody was listening. >> i'm surprised. maybe they heard the news, word got to them that we're out there speaking up. >> but will they solve the problem? >> things got to a >>> rosana was afraid the mold in her bathroom was triggering her daughter's asthma but she was captive to repair hot line that made repairs not weeks away, not months, weeks, even years. >> no one pays attention. if i was on park avenue, that wouldn't be happening. >> it wasn't something i expected, that the story of asthma would be another tale of haves and have notes but as i visited apartment after apartment, that was exactly the narrative i saw evolving. >> how is he doing? >> the difference between rich and poor is especially pronounced in the city's emergency rooms like here at new york presbyterian morgan stanley's hospitals where kids on nebul