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Update information on page as it is a bit outdated.
Figure for total controllers seems off, also needs to have more about navigation facilities and other components of the NAS. Rojas.jorge96 (talk) 21:13, 27 April 2013 (UTC)[reply]
I find nothing in the article that's outdated. To match the FAA's definition of the NAS, it requires expansion to include the ground and satellite components, but that's not outdated, just incomplete.Altaphon (talk) 06:39, 24 November 2015 (UTC)[reply]
