An Iowa State University professor will address biotechnology at an international symposium in Israel next week. Professor Gary Comstock says he’ll refute arguments that genetically modified foods are “tinkering with nature” or “playing God.” Comstock says others argue there are potential consequences of biotechnology that need to be addressed.Comstock is a professor of philosophy and religious studies. He also coordinates the bioethics program at I-S-U. He says awareness of recent problems that developed in the biotech production of corn quickly passed from just the farm community to the spotlight of the global media.Comstock says the testing of biotech products should be conducted by independent, third party agencies.The symposium will be presented by the Manna Institute for Plant Sciences at Israel’s Tel Aviv University. Comstock will deliver his address May 14th.