Brazil Tech Round-Up: Totvs Buys RD Station In Largest-Ever Software Deal, Government Rejects Huawei,  São Paulo Vetoes Facial Recognition Enterprise software giant Totvs buys marketing automation startup RD Station in Brazil's largest private software M&A, Huawei rejected by the government as 5G auction talks  continue, and a bill proposing facial recognition use in São Paulo's subway and train network is vetoed.