This is an interesting article on the subject: http://www.npr.org/blogs/money/2010/05/dont_pay_your_fare_on_the_subw.html http://www.npr.org/blogs/money/2010/0

This is an interesting article on the subject: http://www.npr.org/blogs/money/2010/05/dont_pay_your_fare_on_the_subw.html http://www.npr.org/blogs/money/2010/05/dont_pay_your_fare_on...