Monopoly supplier
If Huawei are the only supplier of 5G equipment then they have a market monopoly. Is it wise to be dependent on one supplier, before interoperability has been proven? Presumably the costs will fall once there is competition, so we should delay roll out to get better value?
To protect network backbones from potential backdoors, will there be a national masterswitch to disconnect all untrusted 5G hardware in the event that an exploit is discovered?