GMO Game Changer?

Some pomegranates labeled as "Certified GMO"

Whole Foods Market recently announced that by 2018, all genetically modified foods will be labeled as such in its 339 stores in the United States and Canada. 

Company representatives say it is in response to consumer demand. Prop 37, a GMO labeling initiative was defeated in California in 2012. Major companies such as Monsanto and PepsiCo invested millions of dollars into the campaign to defeat it. Labeling legislation is now pending in 22 states.

Could this be the tipping point for consumers' right to know what's in their food?