Limited research on genetically-modified crops

Excerpts from an op-ed piece at the Los Angeles Times:

Soybeans, corn, cotton and canola -- most of the acres planted in these crops in the United States are genetically altered. "Transgenic" seeds reduce the use of some insecticides. But herbicide use is higher, and respected experts argue that some genetically engineered crops may also pose serious health and environmental risks. The benefits of genetically engineered crops may be overstated.

We don't have the complete picture. That's no accident. Multibillion-dollar agricultural corporations, including Monsanto and Syngenta, have restricted independent research on their genetically engineered crops. They have often refused to provide independent scientists with seeds, or they've set restrictive conditions that severely limit research options.

This is legal. Under U.S. law, genetically engineered crops are patentable inventions. Companies have broad power over the use of any patented product, including who can study it and how...

Beyond patent law, agricultural companies hold a pocketbook advantage in terms of research. For example, they fund much of the agricultural safety research done in the U.S. And when deciding whether to allow a genetically engineered crop onto the market, the Department of Agriculture and other regulatory agencies do not perform their own experiments on the performance and safety of the product; instead, they rely largely on studies submitted by the companies themselves...

The companies that produce the seeds claim that genetically engineered crops are safe and are better than traditional crops in a range of ways. It's time for these companies to back up their rhetoric. The only way to test their grand assertions is to let independent science take its course.

More at the link.