https://www.theregister.co.uk/2019/05/09/pompeo_invokes_thatcher_huawei_5g_security/

Margaret Thatcher would not let Huawei build Britain's 5G networks, US foreign secretary Mike Pompeo claimed yesterday as British ministers suggested the rollout may be delayed for security reasons.

Pompeo was visiting Britain to deliver a bollocking over the government's decision to continue allowing Huawei to build the edge, but not the core, equipment for future mobile phone networks.