Much of it is likely intentional, particularly the taxi bit. See, for example: http://www.huffingtonpost.com/2013/05/14/dc-taxis-discrimination-disabled_n_327

Much of it is likely intentional, particularly the taxi bit. See, for example: http://www.huffingtonpost.com/2013/05/14/dc-taxis-discrimination-disabled_n_3274731.html http://www.huffingtonpost.com/2013/05/14/dc-taxis-discrimina... ouch.