https://www.theregister.co.uk/2019/04/29/huawei_us_spat/

Analysis Fallout over a leaked decision by the UK government to allow equipment from Chinese manufacturer Huawei into Britain's "non-core" 5G networks has continued into a second week.

On Monday, deputy assistant secretary at the US State Department Robert Strayer told the press that as far as America was concerned there is no difference between core and non-core networks, and again issued a threat to withdrawal intelligence sharing from the Brits if their government approves the use of Huawei networking equipment.