Big corporate gluts lobby to protect themselves from scientific evidence, don't they? Who controls the funding for research?

What mechanism makes it possible for them to continually change the chemical composition of the things we consume (and I don't just mean ingest) without having done a risk study and without having to tell the consumer that the product has changed and how it has changed.

I remember one of my professors, trying to get a grant to study women and babies living in the apple growing region of Virginia. He grew up in the area and noted a high incidence of spontaneous abortion and deformities in the region and suspected it was to do with something the growers were spraying on the apples.

This was about 12 years after the EPA finally got the stick out on Alar (Daminozide). His application to do the research was repeatedly rejected. Is it a coincidence that there was a Uniroyal Plant in the area he wanted to do his research? Uniroyal made Daminozide.