Is it an open and shut case? Some are trying to push this on to the poor, yes the nations poor. I would say it time to put the full cost of this product and all other manufactured goods that pollute back onto the manufacture; not the consumer. Listen to this program from NPR, http://www.npr.org/2012/06/05/154354092/do-plastic-bags-bans-help-the-environment
I would also say reading ‘Garbology, Americas dirty love affair with trash.’ will help you get a better picture of the problem.
Some useful links you should review from the conversation.
http://www.oceanconservancy.org/
http://www.anacostiariverkeeper.org/
http://whichcountrieshavebannedplasticbags.blogspot.com/
One major issue I have with Nick Gillespie and the libertarian ideal of don’t regulate business, is that those harmed have no effective access to stop the pollution. For far too many year, businesses have not paid for their abuse of the environment and in fact, have pushed their cost onto the government which is after all you and me.