The U.S. Government seems to think everyone is. If you are "reverent of individual liberty”, “suspicious of centralized federal authority”, “pay with cash”, “travel illogical distances”, “stockpile food” and any or all of the above (including over 200 other clues) you are a suspected terrorist.
Here are the documents to prove it. The Federal Bureau of Investigation has over twenty different flyers they routinely give to business owners to "fight terrorism", otherwise known as reporting your neighbor. They are listed here as well as a Missouri MIAC Report and a START report on Hotspots of Terrorism in the United States. There have been several incidents around the country where even complaining about your tap water can be considered an act of terrorism.
Meeting one single requirement in any of these flyers/reports is enough to make someone a "suspected terrorist", and therefore covered by the NDAA.
FBI Counter-terrorism Documents
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