Originally Posted by TSAMGR
Do you have a right to take a taxi? No, you take a taxi as a contract between you and the taxi driver. If the taxi driver doesn't want to take you then he doesn't have to.
If the Air Carriers doesn't want to sell a ticket or doesn't want you to fly it is up to them. In order to get to your perferred destination you contracted with the carrier to rent a seat on their vehicle and will use the airport services to get to the plane. To use these services you must be screened through a security checkpoint.
You do have a right not to be screened by not using the services of the air carriers and airport.
Bad argument. In many jurisdictions, a cab driver can only refuse you under certain, pre-defined bases.
Your being from NYC-metro area, you should know that taxis cannot refuse most passsengers so easily. Cab drivers cannot refuse people based on ethnicity and not picking up the first passenger "just because" or for any reason not mentioned explicitly in either applicable legal, regulatory or voluntary compliance systems results (at least occassionally) in prosecution and/or penalties.