A Mexican technology entrepreneur, Gerardo Alton-Ortega, announced plans to invest in developing people carrying drones, seen as a response to the proposed border wall between the US and Mexico. While Alton-Ortega claims the drones are part of his vision of the future, observers believe he aims to enable immigrants to cross the border by air if the wall is built. People carrying drones are still in early development stages and would require new regulations, but some in Mexico view it as a clever way to counter the wall plans.