Remember the flap over Huawei cell equipment? Turns out it had monitoring and jamming functionality built in and was being installed in cell towers near ICBM silos in rural America and is apparently still out there.
Interesting parallel stories about Chinese projects planned and underway near US military bases with items being delivered in diplomatic pouches that can’t be examined by international treaties. These are things like gardens and museums located in prime areas where signals intelligence can be monitored and disrupted when needed.