Unit 2: Government failure: The smoking ban

The BBC eports that the smoking ban has led to a huge increase in cigarette butts piling up on Britain's streets.

< http://www.bbc.co.uk/mediaselector/check/player/nol/newsid_7230000/newsid_7236100?redirect=7236187.stm&news=1&nbram=1&bbwm=1&nbwm=1&bbram=1&asb=1 >

a) Why might this be seen as an example of government failure?