Ghost guns (3d printer)
Nowadays technology is rising everyday at a speed so fast, now people can imprint real guns with 3d printers, and many people sell this kind of guns to anyone. That is danger, because anyone could buy guns, murders could get guns easily. That could increase the violence and criminality in the country and the world by this facility. For example, someone who does'nt know nothing about guns, could buy it easily and uses to do crimes. So for me is very bad, but it´s normal this kind of things happen, the most important things its think in the solution and the laws that goberments gonna take about this reality.