Florida has been ranked the most termite-infested state in the country, and researchers say the problem may not stay contained for long. New data and university research suggest invasive termites are spreading northward — and even interbreeding in ways that could make them harder to contain in the future. What's happening? According to WKMG ClickOrlando, a new Terminix report named Florida the most termite-infested state in the United States, …