I contend genetically-altered plants are not foods, but are altered substances. Their DNA has been hacked into and altered with unlike substances that CAN transfer to human tissue when consumed by humans. In the U.S. normal wide-spread testing of many of these, some would say, has been suppressed. For too long the FDA has turned a blind eye. That's why we (the people) can't sit around and hope that fatherly government regulators will "take care of" us, and instead we have to take action proactively ourselves to insure our own food safety.
I question the intentions of companies that alter and market GM substances without any form of labeling them so that consumers can have a choice in knowing what they're eating. (If you're new to this issue, this link might be a good place to begin reading.)
Case in point...soy...one of the highest altered crops. What is one of the most well-known products utilizing soy? (there are innumerable ones...it's in nearly everything processed...read a label and you'll see)
Answer: Baby formula
I'm no fan of baby formula, but I'm using this as an example. NO testing to see if this is safe for human consumption, yet it is THE most consumed food product for babies worldwide not breastfed.
Here's a good talk on this subject...think about it. By simply labeling a product, we have control over our own choices. Why would the U.S. even balk at doing so? Answer: $$$$$
Well, things, they must change... this video by the author of Seeds of Deception...