No shit? Them and every other country with resources does the same. They even send vendors and HUMINT collectors to all sorts of conferences all year round trying to pass off devices and keep tabs on trends. Collecting in their home country is just expected. The weak links are the idiots that don’t take it seriously, sneak a personal device on a trip that they lose sight of at any point or even just become too close in proximity to a collector and then carry it back home with an exploited device and credentials.