BBC Click covered the issue https://youtu.be/yCzNHi9TBCQ?t=690 onwards. They say Huawei claim to be 18months ahead [12m35] of everyone with 5G, and their interview with UK's intelligence advisor [16m20 onwards] suggested that there's not really a security problem.
They do talk about [17m04+] the possibility of the network being shutdown and the fallout of that, and have a dramatisation.
They do talk about [17m04+] the possibility of the network being shutdown and the fallout of that, and have a dramatisation.