One of the biggest challenges farmers face is pests. But what if safe sex for insects could curb this problem. No, you read that right -- safe sex for insects. On Wednesday night at Hobart and William Smith Colleges, two scientists will discuss their research into genetically modified insects, specifically the diamondback moth. They have found a way to have the moths mate, and only produce male offspring, reducing the population. What are the pros and cons? We ask the two scientists, Tony Shelton and Neil Morrison.