the bill may not be perfect but it is a start; there is a need for a national labeling system rather than allowing each state to make its own laws.  there needs to be consistency.  presumably only foods that contain gmo would be labeled, even if the labeling is somewhat confusing, if you are anti gmo, then just don't buy it.  if this bill falls short, it can always be amended later to make it more responsive to consumers, like adding penalties for noncompliance.  But, I would think that the FDA would be testing the non-labeled products to see if they contain any gmo products and take corrective action.  we have been consuming gmo products for over 30 years and there are no scientific proof that it is detrimental to our health, so some mislabeling is not life threatening.