>>Suspect a Citation on a charter would not qualify as a mass transit vehicle.<<
Maybe it does qualify:
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...The anti-terrorism provision of the Patriot Act was used to prosecute Richard Reid of Great Britain for hiding explosives in his shoe while on a flight from Paris to Miami in December 2001, but that count of the indictment against him was dismissed because a federal court ruled that an aircraft was not a "vehicle" under the scope of the Patriot Act.
The law subsequently was amended to define "vehicle" as any "means of transportation on land, water or through the air."
From:
http://www.nj.com/news/ledger/jersey...9786917220.xml