https://www.reuters.com/article/us-britain-huawei-leak-deputy/britain-says-leak-on-huawei-is-being-taken-very-seriously-idUSKCN1S11AT >The leak of details from a National Security Council meeting on allowing Huawei Technologies a restricted role in building parts of Britain's 5G network is being taken very seriously, Prime Minister Theresa May's deputy said.