Huawei will have its usual massive presence at Mobile World Congress next week, and the stakes will be higher than ever because of the political battles it is fighting, trying to preserve its access to infrastructure deals in USA-allied countries at a crucial time, with big 5G contracts imminent. The saga continues to twist and turn, though there are signs that most countries are reluctant to impose an outright ban on Chinese vendors, and want a compromise which would involve tougher measures to protect against spyware. This is partly because of pressure from their operators, which have been vociferous in arguing that their right to choose their own suppliers, and manage their own security, must be protected – otherwise they…