http://taxprof.typepad.com/taxprof_blog/2015/10/ny-times-yes-soda-taxes-cut-soda-drinking.html
http://www.taxrates.com/blog/2015/10/16/navajo-nation-high-taxes-on-junk-food-are-justified/
http://www.taxrates.com/blog/2015/10/14/mexicos-soda-tax-seems-to-be-working/