I got an email from Greenpeace India about their update to the 'Safe Food Guide'.
The title is a bit misleading... it is only about GMOs. So, if a product is full of lead or arsenic, this won't tell you.
This is useful for people living in India who want to avoid GM foods out of concern about their safety (or whichever other concern).
Personally, I'm much more concerned about pesticides and other forms of contamination in my food...