How New York's subway became a $68BN money pit

New York City's subway system is one of the most famous - and notorious - modes of transportation on Earth. It has been the inspiration for countless songs, the backdrop of endless iconic movies and many see it as a symbol of the city itself. But it needs help.

With New Yorkers tired of the constant delays and often outdated cars, $68 billion has been pledged to give this legend a much needed face lift. But obtaining that much funding isn't easy - and at the end of the day, will it even be enough?