Tonight I typed in EWR for a flight at nwa.com, and it comes back with a "we need you to clarify your departure location..." error. My choices:

Newark (All Locations), NJ (EWR)
Newark Liberty International, NJ (EWR)

What the heck is up with that? I'm used to AA.com asking me to clarify my "NYC" queries (giving me a choice of NYC/EWR/JFK/LGA) and I'm used to Delta.com being obnoxious and refusing to let me search for NYC altogether (making me specify one of EWR/JFK/LGA).

But why does nwa.com now get confused by EWR? I've never seen this before.