I didn't see anything in the article about how political concerns over technology such as RNAV (http://www.faa.gov/air_traffic/publications/atpubs/aim/aim0102.h

I didn't see anything in the article about how political concerns over technology such as RNAV (http://www.faa.gov/air_traffic/publications/atpubs/aim/aim0102.html http://www.faa.gov/air_traffic/publications/atpubs/aim/aim01...) have held back the transition to a nextgen system. I work at an airport where community concern over any potential changes to where aircraft fly has held back implementation of new technology that would make the whole process more efficient. My understanding is that many other major airports in the US face similar community and political issues about RNAV. I suspect this has also had a major role in the delay of the nextgen roll out.