Human beings have long been at war with mosquitos, and it’s not at all clear we’ve been winning. Malaria alone—just one of many deadly mosquito-borne illnesses—kills over 600,000 people every year, most of them very young children. Until now, all we’ve had were short-term solutions, like public inoculations, insecticides, traps, and (usually futile) hand-swatting. But a French tech startup called Tornyol is saying enough is enough: Let’s turn this never-en