Independent researchers can do testing on our products. In fact, there have been hundreds of studies on GMOs performed by independent scientists. Please see additional information that I provided in response to a similar question on GMO Answers: http://gmoanswers.com/ask/i-learned-practical-experience-order-get-job-monsanto-or-do-any-research-supported-monsanto-or.
QWhy doesn't Monsanto allow any private researchers to test if their GMO seeds are actually safe? The only tests done on GMO food are done by or paid for by Monsanto, clearly it doesn't take a genius to figure out these tests are rigged in favor of Monsant