Here is one that is verifiable.
Last year, Monsanto spent nearly $6 million on lobbying, and their payoff was the "Monsanto Protection Act," which was written anonymously, passed in secret, and allows Monsanto to keep selling genetically engineered seeds even if a federal court says they may pose a health risk.1
This year, Monsanto has sneaked an amendment into the farm bill that would block GMO labeling laws moving forward in states like Vermont and Connecticut.
1. "Lobbying Spending Database—Monsanto Co, 2013," OpenSecrets.org, accessed May 21, 2013
"How the Monsanto Protection Act snuck into law," Salon, March 27, 2013
2. "'Monsanto Protection Act 2.0′ Would Ban GMO-Labeling Laws At State Level," International Business Times, May 20, 2013