Persistent calls, annoying calling every day.

I have noticed NORC U Chicago on my Caller ID and mostly it was during the day.  Tonight I made the mistake of picking up (8:28pm) and someone started off saying his name and he was representing the CDC.  I hung up.  Whatever he was selling, I'm not interested.

After reading the comments here, I don't remember ever receiving a letter stating I was "selected" to participate.  I did go their website (www.norc.org) and they seem to be conducting quite a number of surveys.

Fine, it's a legitimate organization; however, I have an unpublished number and really do not want them to call (I'll be reporting them to the FCC).  So, I guess they will be hearing nothing but ring tones until they get sick of it.

Yes this is legit.. did not ask me anything that if I did not want to answer that I couldn't.
This is for the Center of Disease control.

They are only looking for immunizations of children in the household, if you have no kids, answer the phone and tell them.  They stop calling.

May be "legit" but it is still intrusive and unsolicited.